John Wolff's Web Museum

Calculator Index by Make and Model

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• Mechanical Calculators
  
  
• Early Electronic Calculators

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Mechanical Calculators

This section also includes some of the early electronic calculators that were produced by (or for) the established mechanical calculator companies. These machines are also listed in the separate Electronic section below.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

• Adall single-column adder, 100-tooth disc
• Adder single-column adder, 3-dial, 10-key
• Adix single-column adder, 3-dial, 9-key
• Addiator (Germany)
  • Addiator Standard, 9 columns, decimal
  • Addiator Standard, 9 columns, Sterling
  • Addiator Fractomator, 9 columns, Imperial lengths
  • Addiator Fractomator Negative, 9 columns, Imperial lengths
  • Addiator Quantotar, 9 columns, Imperial weights
  • Addiator Duplex, 8/9 columns, Sterling (3 versions)
  • Addiator Arithma, 6 columns, Sterling
  • Addiator Arithma, 6 columns, decimal
  • Addiator Addfeet Junior, 6 columns, Imperial lengths
  • Addiator slide rule, Faber-Castell 67/22 Rb "Business", 6 columns, decimal
  • Addiator slide rule, Faber-Castell 67/87 Rb "Rietz", 6 columns, decimal
  • Addiator Hexadat, 8 columns, hexadecimal
• Addicalco Model 53, key-driven, 10 columns, Sterling
• Addimult (Germany)
  • Addimult Addmaster slide adder, 9 columns, Sterling
  • Addimult Sumax-E slide adder, 8/9 columns, decimal
  • Addimult Addmaster Baby slide adder, 6 columns, decimal
• Addipresto adding machine, 7 columns, decimal
• Addmaster (Clary, branded Friden), 10-key, printing, 10 columns, electric
• AddMaster (Italy)
  • AddMaster Model 47, printing, 10/11 columns, Sterling, manual
  • AddMaster Model 47NE, printing, 10/11 columns, Sterling/decimal, electric
• Add-O-Matic adding machine pencil case, 4 columns, decimal
• Add-Sub - see Solo
• Addo and Multo (Sweden)
  • Addo Model 9K, printing, 9/10 columns, Sterling, manual
  • Addo Model 10K, printing, 9/10 columns, Sterling, manual
  • Addo Model N9, printing, 9/10 columns, converted, manual
  • Addo-X Model 48E, printing, 10/11 columns, converted, electric
  • Addo-X Model 331, printing, 10/11 columns, manual
  • Addo-X Model 154, printing, 10/11 columns, electric
  • Addo-X Model 2383, printing, 12/13 columns, electric, with multiplier
  • Addo-X Model 4653, printing, 12/13 columns, electric, full automatic
  • Addo Multo Model 3, pinwheel, 10x8x13 (two versions)
  • Addo Multo Model 113, pinwheel, 10x8x13
• Addometer 8-dial adder, feet, inches, and eighths
• Addometer 8-dial adder, Sterling
• Adwel Model W504, 8 columns, printing, manual
• AMCO adding machine, 9 columns, Sterling
• Alpina miniature calculator, 8x6x13
• Aristo Slide Rule, 10", "Scholar" Model 0903
• Arithma - see Addiator

B

• "Baby Calculator", slide adder, 8/9 columns, decimal
• Barrett (Monotype), printing, 9/12 columns, decimal, manual
• Barrett (Monotype) Model 152, printing, 9/12 columns, Sterling, manual
• Barrett (Corona) Portable, printing, 7/8 columns, decimal, manual
• Bell Punch Company, UK - see PLUS, Sumlock, Comptometer, and Anita.
• BriCal Adding Machine, 6 columns, Sterling, S/N B-832
• BriCal Adding Machine, 6 columns, Decimal, S/N E-850
• BriCal Money Calculating Machine, 3/4 columns, Sterling
• Britannic Model 2A, pinwheel, 9x10x18
• Browne Cylindrical Slide Rule, Model F.C.46, Made in Australia
• Brunsviga (Grimme, Natalis & Co, Germany)
  • Brunsviga Model A, pinwheel, 9x10x18
  • Brunsviga Model B (early version), pinwheel, 9x8x13
  • Brunsviga Model B (later version), pinwheel, 9x8x13
  • Brunsviga Model J, pinwheel, lever set, 9x8x13
  • Brunsviga Model M III, pinwheel, 9x8x13
  • Brunsviga Nova II, pinwheel, 10x10x15
  • Brunsviga Nova 13, pinwheel, 10x8x13
  • Brunsviga Model 13ZK, pinwheel, 10x8x13
  • Brunsviga Model 13Z, pinwheel, 10x8x13
  • Brunsviga Model 13RK, pinwheel, 10x8x13
  • Brunsviga Model 13RM, pinwheel, 10x8x13, 1960s
  • Brunsviga Model 13B, pinwheel, 10x8x13
  • Brunsviga Model D13R-2, double pinwheel, 10x8x13 each side
  • Brunsviga Model 10, stepped drum, 6x5x10, portable
  • Brunsviga Model 11E, stepped drum, 7x6x10, electric
  • Brunsviga Model 94T, adding machine, 8/9 columns, manual
  • Brunsviga Model 94T, adding machine, 8/9 columns, Sterling, manual
  • Brunsviga Model G894, 10-key, printing, 8/9 columns, manual
• Burroughs Adding Machine Company (USA)
  • Burroughs Adding Machine, Class 1, Model 9, 9 columns, Sterling
  • Burroughs Adding Machine, Class 1, Model 2, 9 columns, Sterling, electric
  • Burroughs Adding Machine, Class 3 (Visible), 10 columns, Sterling, manual
  • Burroughs Adding Machine, Class 3 (Visible), 7 columns, Sterling, manual
  • Burroughs Calculator, 9 columns, early, Sterling
  • Burroughs Calculator, 13 columns, early, Sterling
  • Burroughs Calculator, Class 5, 13 columns, Sterling
  • Burroughs Calculator, later model, 13 columns, Sterling
  • Burroughs Calculator, later model, 13 columns, Sterling, electric
  • Burroughs Calculator, late model, 13 columns, manual
  • Burroughs Calculator, late model, 9 columns, dual register, electric
  • Burroughs Portable, black, add only, 8 columns, Sterling
  • Burroughs Portable, black, add only, 10 columns, Sterling
  • Burroughs Portable, black, add/sub, 8 columns, Sterling
  • Burroughs Portable, black, add/sub, 8 columns, Sterling, electric
  • Burroughs Portable, black, add/sub, 10 columns, Sterling, electric, wide carriage
  • Burroughs Portable, brown, add/sub, 10 columns, Sterling, electric
  • Burroughs Portable, light green, add/sub, 8 columns, Sterling
  • Burroughs Portable, light brown, add/sub, 10 columns, decimal
  • Burroughs Portable, green plastic, add only, 8 columns, decimal
  • Burroughs Portable, brown plastic, add only, 7 columns, decimal, cash register
  • Burroughs J Series, Model J524, 10-key, printing, 10/11 columns, electric
  • Burroughs J Series, Model J624, 10-key, printing, 10/11 columns, electric
  • Burroughs J Series, Model J700, 10-key, printing, 10/11 columns, electric
  • Burroughs J-1000 Series, Model J1522, 10-key, printing, 8/9 columns, electric
  • Burroughs J-1000 Series, Model J1624, 10-key, printing, 10/11 columns, electric
  • Burroughs Model C5155, electronic, 10 digit, 3-chip LSI, 1973
• Busicom Model HL-21, pinwheel, 10x11x21

C

• Calculator Corp 7-dial adder, decimal
• Chateau (Dactyle), pinwheel, 9x8x13
• Clary Model 189, printing, 8/9 columns, electric
• Clary "Addmaster" (branded Friden), 10-key, printing, 10 columns, electric
• Commodore 10-key, printing, 9 columns, manual
• Commodore 10-key, printing, 9 columns, electric
• Comptator slide-set adding machine, 13 columns, Sterling
• Comptograph (Walther), Model 101, 10-key, printing, 9 columns, electric
• Comptometer (Felt & Tarrant Manufacturing Company, USA)
  • Comptometer (Felt & Tarrant), Model A, 8 columns, 1905
  • Comptometer (Felt & Tarrant), Model E, 10 columns, Sterling, 1914
  • Comptometer (Felt & Tarrant), Model F, 10 columns, Sterling, c.1920
  • Comptometer (Felt & Tarrant), Model H, 10 columns, Sterling
  • Comptometer (Felt & Tarrant), Model J, 8 columns, Sterling
  • Comptometer (Felt & Tarrant), Model J, 12 columns, Sterling
  • Comptometer (Felt & Tarrant), Model J/S, Super Totalizer (dual register), 10 columns, Sterling
  • Comptometer (Felt & Tarrant), Model K, 12 columns, Sterling, electric
  • Comptometer (Felt & Tarrant), Model M, 12 columns, Sterling
  • Comptometer (Felt & Tarrant), Model 3D11, 12 columns, decimal (converted)
  • Comptometer (Felt & Tarrant), Model J, 12 columns, decimal, refurbished
  • Comptometer (Felt & Tarrant Ltd), Model 992, 12 columns, electric, Sterling
  • Comptometer (Felt & Tarrant Ltd), Model 99C, 12 columns, electric, Sterling
  • Comptometer (Sumlock), Model 12B, 12 columns, manual, converted
  • Comptometer (Sumlock), Model 12E, 12 columns, electric, converted
  • Comptometer (Sumlock), Model 12D, 12 columns, duplex, electric, Sterling
  • Comptometer (Sumlock), Model 9B, 9 columns, manual, decimal
  • Comptometer (Sumlock), Model 12E, 12 columns, electric, decimal
  • Comptometer (Sumlock), Model 12E, 12 columns, duplex, electric, decimal
• Concise Circular Slide Rule, Model 300
• Contex (Denmark)
  • Contex adder, half-keyboard, Model A, 8 columns, Sterling (3 versions)
  • Contex adder, half-keyboard, Model A, 8 columns, decimal (2 versions)
  • Contex adder, half-keyboard, Model B, 8 columns, (3 versions)
  • Contex Model 10, 10-key, 10 digit, manual
  • Contex Model 20, 10-key, 10 digit, electric
  • Contex Model 30, 10-key, 10 digit, semi-automatic
  • Contex Model 55, 10-key, 10 digit, fully automatic
• Corona (Barrett) Portable, printing, 7/8 columns, decimal, manual
• Correntator slide adder, 8/9 columns, Sterling
• Curta miniature calculator, Type 1, 8x6x11 (2 versions)
• Curta miniature calculator, Type 2, 11x8x15

D

• Dacometer 508 adder, half-keyboard, 8/9 columns, Sterling (no farthings)
• Dacometer 508 adder, half-keyboard, 8/9 columns, decimal
• Dactyle (Chateau), pinwheel, 9x8x13 (see also Marchant.)
• Diehl Model EVM18S, 9x8x18, fully automatic
• Diehl Transmatic S, 10-key, printing, fully automatic
• Diehl Decima, 10-key, printing, fully automatic

E

• Egli, Hans W (Zurich, Switzerland)
  • Millionaire Calculating Machine, direct multiplication, 8x8x16, slide set, manual
  • Millionaire Calculating Machine, direct multiplication, 8x8x16, key set, manual
  • MADAS Calculating Machine, 7x7x12, slide set, manual
  • MADAS Calculating Machine, 8x9x16, slide set, manual
  • Madas Portable, Model 20AZV, 10x10x20, fully automatic
  • Madas Model 20ATG, 10x10x20x20, fully automatic
  • Madas Model 20BTG, 10x10x20x20, fully automatic
  • Madas Model 20BTG, 10x10x20x20, fully automatic, with multiplication counter
  • Madas Model 20BS, 10x10x20, fully automatic
  • Madas Model 20L, 10x10x20, semi-automatic
  • Madas Model 20LZS, 10x10x20, semi-automatic
  • Madas Model 16eN, 8x8x16, semi-automatic
• Exactus "Mini-Add", pocket slide adder, 8/9 columns, Sterling (two versions)
• Exactus "Mini-Add", desktop slide adder, 10 columns, Sterling

F

• Facit (Sweden)
  • Facit Model "Standard", 9x10x15, manual
  • Facit Model S, 10x8x13, manual
  • Facit Model TK, 9x8x13, manual (three versions)
  • Facit Model NTK, 9x8x13, manual (two versions)
  • Facit Model C1-13, 9x8x13, manual (five versions)
  • Facit Model LX, 10x10x19, manual
  • Facit Model NLX, 10x10x19, manual
  • Facit Model C1-19, 10x10x19, manual
  • Facit Model CM2-16, 11x9x16, manual
  • Facit Model CM2-16S, 11x9x16, manual
  • Facit Model CM2-13S, 9x8x13, manual
  • Facit Model 10-04, 11x9x16, manual
  • Facit Model NE, 9x8x13, electric
  • Facit Model NEA, 9x8x13, electric
  • Facit Model ESA-0, 9x8x13, electric
  • Facit Model CA1-13, 9x8x13, electric (four versions)
  • Facit Model CA2-16, 11x9x16, electric
  • Facit Model CA2-16SX, 11x9x16, electric
  • Facit Model 10-07, 11x9x16, electric
  • Facit Model 1124, electronic, 14 digit, DTL-SSI, 1968
  • Facit Model 1135J, electronic, 16 digit, 7-chip LSI, 1971
  • Facit Model 1111 (Sharp EL-8), electronic, 8 digit, 4-chip LSI, 1970-71
  • Facit Model 1148, electronic, 12 digit, printing, 2-chip LSI, 1973
• Fearns-Mear Pipe Flow Calculator circular slide rule
• Felix, pinwheel, 9x8x13, with cover
• Felix Model M, pinwheel, 9x8x13
• Felt & Tarrant Manufacturing Company - see Comptometer
• Flying Fish Model JSY-20 (Monroe LN-200 clone), 10x10x20, manual
• Fowler's "Jubilee Magnum" circular slide rule
• Fractomator - see Addiator
• Friden Calculating Machine Company (USA)
  • Friden Model C10, 10x11x21, semi-automatic
  • Friden Model D10, 10x11x21, semi-automatic
  • Friden Model CW10, 10x11x20, semi-automatic
  • Friden Model STW10, 10x11x20, fully automatic
  • Friden Model SBT10, 10x11x20, fully automatic
  • Friden Model SVE, 10x11x20, fully automatic
  • Friden (Singer/Clary) Model 210, 10-key, printing, 10 columns, electric
  • Friden Model EC-132, electronic, discrete component, 1966
  • Friden (Singer/Hitachi) Model 1115, electronic, 12 digit, 1970
  • Friden (Singer/Hitachi) Model 1200, electronic, 8/12 digit, 1973

G

• Grimme, Natalis & Co - see Brunsviga

H

• Hamann 505 Tenkeymaster, 9x8x16, full automatic
• Hermes - see Precisa AG (Zurich, Switzerland)
• Hoffritz adding machine, 7 columns, decimal

I

• Inzadi Model M5, 10-key, printing, 11/12 columns, decimal, electric

J

• Jaguar (Maruzen) Model K2, 10-key, printing, 8/9 columns, decimal, manual
• Jaguar (Maruzen) Model EK2, 10-key, printing, 8/9 columns, decimal, electric

K

• Kingson slide adder, 6 columns, Sterling
• Kingson slide adder, 6 columns, decimal

L

• Lagomarsino (Milan, Italy)
  • Lagomarsino Numeria Model 5905, 10x11x21, axial pinwheel, manual
  • Lagomarsino ElettroNumeria Model 8925, 10x11x21, axial pinwheel, semi-automatic
  • Lagomarsino SterliNumeria Model 8725, axial pinwheel, semi-automatic, Sterling
  • Lagomarsino Totalia Model 8381, 10-key, printing, 12/13 column, fully-automatic
  • Lagomarsino Totalia Model S4-GT, 10-key, printing, 14/15 column, fully-automatic
• Lightning Calculator, 7-dial adder, Sterling
• London Computator Corporation - see PLUS

M

• MADAS - see Egli, Hans W (Zurich)
• "Magic Brain Calculator", slide adder, 7/8 columns, decimal
• Marchant Calculating Machine Company (USA)
  • Marchant Standard, 9x8x13, pinwheel, manual
  • Marchant XL, 9x9x18, extending segment, manual
  • Marchant XL, 9x9x18, extending segment, manual (later version)
  • Marchant XLA, 9x9x13, extending segment, manual
  • Marchant Model DRB8, 9x9x18, extending segment, full keyboard, manual
  • Marchant Model DRB10, 10x9x20x16, extending segment, full keyboard, electric
  • Marchant Model H9, 9x9x18, extending segment, full keyboard, manual
  • Marchant Silent Speed Model 10D, 10x10x20, semi-automatic
  • Marchant Silent Speed Model 10ACT, 10x10x20, fully automatic
  • Marchant Figurematic, Model 10DRX, 10x10x20, fully automatic
  • Marchant Figurematic, Model 10ADX, 10x10x20, fully automatic
  • Marchant TransFlo, Model TR10FA, 10x10x20, fully automatic
  • Marchant Deci-Magic, Model SKA, 10x11x20, fully automatic
  • SCM Marchant TransFlo, Model TR, 10x10x20, fully automatic
• Maruzen (Jaguar) Model K2, 10-key, printing, 8/9 columns, decimal, manual
• Maruzen (Jaguar) Model EK2, 10-key, printing, 8/9 columns, decimal, electric
• Millionaire calculating machine - see Egli, Hans W (Zurich)
• Monarch (Remington) Model 93, printing, 10 columns, decimal, electric
• Monotype (Barrett), printing, 9/12 columns, decimal, manual
• Monotype (Barrett) Model 152, printing, 9/12 columns, Sterling, manual
• Monroe Calculating Machine Company (USA)
  • Monroe Model K "High Speed Adding Calculator", 8x8x16, manual
  • Monroe Model KA "High Speed Adding Calculator", 8x8x16, motor drive
  • Monroe Model L-160X "Executive", 8x8x16, manual, portable
  • Monroe Model LN-160X, 8x8x16, manual, portable
  • Monroe Model LA5-160, 8x8x16, motor drive
  • Monroe Model LA5-200, 10x10x20, motor drive
  • Monroe Model LA7-200, 10x10x20, motor drive
  • Monroe Model LA9-203, 10x10x10x20, motor drive
  • Monroe Model MA3, 10x10x20, motor drive
  • Monroe Model MA7, 10x10x21, semi-automatic
  • Monroe "MonroMatic" Model CSA-10, 10x10x20, fully automatic
  • Monroe "MonroMatic" Model 6N-212, 10x11x21, fully automatic
  • Monroe "MonroMatic" Model 8N-213, 10x11x21, fully automatic
  • Monroe "MonroMatic" Model 88N-213, 10x11x21x21, fully automatic
  • Litton "MonroMatic" Model 6F-212, 10x11x21, fully automatic
  • Monroe Model 150, 10-key, printing, 12/13 columns, electric
  • Monroe Model 410, 10-key, printing, 10 columns, Sterling, wide-carriage, electric
  • Monroe Model 800, 10-key, printing, 10 columns, Sterling, electric
  • Monroe Model 811, 10-key, printing, 8/9 columns, manual
  • Monroe "Mach 1", 10-key, printing, 10/15 columns, fully automatic
  • Monroe Model 40, electronic, portable, 10 digits, 1974
  • Monroe Model 273, electronic, printing, 12 digits, 1979
• Muldivo (Thales Model B), pinwheel, 9x10x18
• Muldivo Mentor (Walther WSR-160), pinwheel, 10x8x16
• Multifix miniature calculator, 6x6x11
• Multo - see Addo

N

• Nisa Model K1 (Monroe LN-200 clone), 10x10x20, manual
• NCR, 10-key, printing, 11 columns, electric
• Numeria - see Lagomarsino (Milan, Italy)

O

• Olivetti (Ivrea, Italy)
  • Olivetti Divisumma 24, 10-key, printing, 12 columns, electric, fully automatic
  • Olivetti Divisumma 26GT, 10-key, printing, 12 columns, electric, fully automatic
  • Olivetti Elettrosumma 14, 10-key, printing, 10 columns, electric
  • Olivetti Elettrosumma 20, 10-key, printing, 10 columns, electric
  • Olivetti Elettrosumma 22, 10-key, printing, 12 columns, electric, Sterling
  • Olivetti Elettrosumma 22, 10-key, printing, 12 columns, electric
  • Olivetti Elettrosumma 23, 10-key, printing, 12 columns, electric
  • Olivetti Elettrosumma 24CR, 10-key, printing, 12 columns, electric, programmable carriage
  • Olivetti Multisumma 20, 10-key, printing, 10 columns, electric
  • Olivetti Multisumma 24, 10-key, printing, 12 columns, electric
  • Olivetti Summa 15, 10-key, printing, 10 columns, manual, Sterling
  • Olivetti Summa "Prima 20", 10-key, printing, 10 columns, manual, Sterling
  • Olivetti Summa "Prima 20", 10-key, printing, 10 columns, manual (2 versions)
  • Olivetti Summa "Quanta 20", 10-key, printing, 10 columns, electric
  • Olivetti Summa "Quanta 20R", 10-key, printing, 8 columns, electric
  • Olivetti Underwood 200 (Prima 20), 10-key, printing, 10 columns, manual
  • Olivetti Logos 240, electronic, printing, 16 digit, 1970
  • Olivetti Logos 58, electronic, printing, 16 digit, 1973
  • Olivetti Divisumma 18, portable, electronic, printing, 12 digit, 1973
  • Olivetti Divisumma 422, electronic, printing, 12 digit, 1980s
• Olympia (Wilhelmshaven, Germany)
  • Olympia 1182, 10-key, printing, 8/9 columns, manual
  • Olympia AM, 10-key, printing, 8/9 columns, electric
  • Olympia RAS-12, 10-key, printing, 11/12 columns, automatic multiplication
  • Olympia RA-20, 10-key, 10x11x20, fully automatic
  • Olympia Model CD-400, electronic, 12 digit, desktop, 1970
  • Olympia Model CD-200, electronic, 10 digit, desktop, 1971
  • Olympia Model CD-71, electronic, 8 digit, portable, 1974
  • Olympia Model CP-1210, electronic, 15 digit, printing, 1976
  • Olympia Model CD-402, electronic, 12 digit, desktop, 1976
  • Olympia Model CD-430, electronic, 12 digit, desktop, 1980
• Original-Odhner (Goteborg, Sweden)
  • Original-Odhner "LUSID", pinwheel, 10x15x10
  • Original-Odhner Model 11, pinwheel, 10x11x20
  • Original-Odhner Model 22, pinwheel, 10x8x13
  • Original-Odhner Model 23, pinwheel, 10x8x13
  • Original-Odhner Model 27, pinwheel, 10x8x13
  • Original-Odhner Model 29, pinwheel, 10x8x13
  • Original-Odhner Model 125, pinwheel, 10x11x20
  • Original-Odhner Model 127, pinwheel, 10x8x13
  • Original-Odhner Model 227, pinwheel, 10x8x13
  • Original-Odhner Model 239, pinwheel, 10x8x13
  • Original-Odhner Model 1049, pinwheel, 10x8x13
  • Original-Odhner Model LX11C-5, 10-key, printing, 10/11 columns, Sterling, electric
  • Original-Odhner Model E11C-2, 10-key, printing, 10/11 columns, electric
  • Original-Odhner Model XX11C-9, 10-key, printing, 10/11 columns, electric, with multiplier
  • Original-Odhner Model 1207, 10-key, printing, 10/11 columns, electric
• Otis King's Cylindrical Slide Rules, Models K and L

P

• Peter Pan educational adding machine, 4 columns, decimal
• Pike - see Burroughs
• PLUS Rapid Adder (Bell Punch Company, London)
  • Plus half keyboard adder (Bell Punch), Model SJ, 5/6 columns, Sterling
  • Plus half keyboard adder (Bell Punch), Model A, 9/9 columns, Sterling
  • Plus half keyboard adder (London Computator Corp), early, 9/10 columns, Sterling/F
  • Plus half keyboard adder (London Computator Ltd), early, 12/13 columns, Sterling/F
  • Plus half keyboard adder (Bell Punch), early, 9/10 columns, Sterling
  • Plus half keyboard adder (Bell Punch), middle, 9/10 columns, Sterling
  • Plus half keyboard adder (Bell Punch), middle, 6/7 columns, Sterling
  • Plus half keyboard adder (Bell Punch), middle, 9/10 columns, converted
  • Plus half keyboard adder (Bell Punch), late green, 9/10 columns, converted
  • Plus half keyboard adder (Bell Punch), late green, 6/7 columns, converted
  • Plus half keyboard adder (Bell Punch), late beige, 9/10 columns, decimal
  • Plus half keyboard adder (Bell Punch), late beige, 9/10 columns, Imperial weights
• Portable (Barrett/Corona) , printing, 7/8 columns, decimal, manual
• Precisa AG (Zurich, Switzerland)
  • Precisa Model 160-12, 10-key, printing, 12/13 columns, decimal, electric
  • Precisa Model 164-12, 10-key, printing, 12/13 columns, decimal, automatic multiplication
  • Precisa (Hermes) Model 167-12, 10-key, printing, 12/13 columns, full automatic
  • Precisa Model 208-10, 10-key, printing, 10/11 columns, decimal, electric
• Produx slide adder, Model ST, 7/8 columns, decimal
• Produx slide adder, Model M, 8/9 columns, decimal

Q

• Quantotar - see Addiator

R

• Rambler (Ricoh Alexe) 5-dial push-button adder, decimal
• Remington Monarch Model 93, printing, 10 columns, decimal, electric
• Resulta 7 adding machine, 7 columns, decimal
• Resulta 9 Export adding machine, 9 columns, decimal
• Ricoh Alexe (Rambler) 5-dial push-button adder, decimal
• Royal Office Master, 10-key, printing, 9 columns, manual
• Royal compact, 10-key, printing, 9 columns, manual

S

• Schubert Model DRV, pinwheel, 10x8x13
• SCM Hamann 505 Tenkeymaster, 9x8x16, fully automatic
• SCM Marchant TransFlo, Model TR, 10x10x20, fully automatic
• Slide Rules
  • Slide Rule, 10", Aristo "Scholar" Model 0903
  • Slide Rule, 10", Service, Made in Australia
  • Slide Rule, 10", W&G Model 432, Made in Australia
  • Slide Rule, Circular, Concise Model 300
  • Slide Rule, Circular, Fowler's Jubilee Magnum
  • Slide Rule, Circular, Fearns-Mear Pipe Flow Calculator
  • Slide Rule, Cylindrical, Browne Model F.C.46, Made in Australia
  • Slide Rule, Cylindrical, Otis King
• Soemtron Model 209, 9x8x17, semi-automatic
• Soemtron Model 215, 9x8x17, fully automatic
• Solo Handy Adding Machine, 7 digit, decimal
• Speedee "Add-a-Matic", half keyboard adder, 9 digit, decimal
• Sumit adding machine, 8 columns, decimal
• Sumlock (Bell Punch Company, London)
  • Sumlock (Bell Punch) 912F, 12 columns, Sterling/F
  • Sumlock (Bell Punch) 912S, 12 columns, converted
  • Sumlock (Bell Punch) Duolectric, 12 columns, dual register, electric, Sterling
  • Sumlock (Bell Punch) Duolectric, 9 columns, dual register, electric, converted
  • Sumlock (Bell Punch) Figure-flow, 9 columns, manual, decimal
  • Sumlock (Bell Punch) Duolectric, 12 columns, dual register, electric, decimal
  • Sumlock (Bell Punch) Sumlomatic, 12 columns, dual register with multiplier, electric
  • Sumlock (Comptometer), Model 12B, 12 columns, manual, converted
  • Sumlock (Comptometer), Model 12E, 12 columns, electric, converted
  • Sumlock (Comptometer), Model 12D, 12 columns, duplex, electric, Sterling
  • Sumlock (Comptometer), Model 9B, 9 columns, manual, decimal
  • Sumlock (Comptometer), Model 12E, 12 columns, electric, decimal
  • Sumlock (Comptometer), Model 12E, 12 columns, duplex, electric, decimal
• Summira Model 8£ adding machine, 8 digit, Sterling
• Summira Model S8£ adding machine, 8 digit, Sterling, printing
• Swift Handy Calculator, 7 digit, decimal

T

• TEC Model AM-601, 10-key, printing, 10/11 columns, decimal, electric
• Thales Model A, pinwheel, 9x8x13
• Thales Model B, pinwheel, 9x10x18
• Thales Model KA, adding machine, 8/9 columns, decimal
• Tiger, pinwheel, 9x8x14, 1937
• Tiger, extending segment, 10x10x20, 1957
• Tiger H68-21, extending segment, 10x11x21, 1968
• Totalia - see Lagomarsino (Milan, Italy)
• Triumphator, pinwheel, 9x8x13, c.1914

U

• Underwood Sundstrand Model 8112, 10-key, 8/9 columns, printing, Sterling
• Underwood Sundstrand Model 10150, 10-key, 8/9 columns, printing, Sterling
• Underwood 200 (Olivetti Prima 20), 10-key, 10/11 digit, printing, manual
• Underwood 400 (Olivetti Elettrosumma 22), 10-key, 12/13 digit, printing, electric

V

• Ve-Po-Ad slide adder, 8/9 columns, decimal
• Victor Adding Machine Company (Chicago, USA)
  • Victor 500 Series, 10 columns, manual, Sterling (with farthings)
  • Victor (UK) 600 Series, 8/9 columns, manual, Sterling
  • Victor (UK) 600 Series, 8/9 columns, electric, Sterling
  • Victor Custom, Model 60-60-4, 10/11 columns, electric, Sterling
  • Victor Model 6-83-4, 8/9 columns, manual, full keyboard
  • Victor Model 7-83-4, 8/9 columns, manual, ten-key
  • Victor Tallymaster, Model 7-7-0, 7/8 columns, manual, ten-key, addition only
  • Victor Tallymaster, Model 37-7-0, 7/8 columns, manual, ten-key, addition only
  • Victor Tallymaster, Model 37-57-0, 7/8 columns, manual, ten-key, addition and subtraction
  • Victor Tallymaster, Model 37-57-50, 7/8 columns, electric, ten-key
  • Victor Digit-Matic, Model 12-08-121, 8 columns, electric, solenoid operated
  • Victor Premier, Model 71-85-4, 10/11 columns, manual, ten-key
  • Victor Premier, Model 71-85-54, 10/11 columns, electric, ten-key
  • Victor Tallymate, Model 85, electronic, 8 digit, 1972
  • Victor 1800, Model 18-1721, electronic, 14 digit, scientific, 1973
  • Victor Medalist, Model 204, electronic, 12 digit, 1976

W

• Walther (Germany)
  • Walther Model RMKZ, pinwheel, 10x8x13
  • Walther Model WSR-160 (Muldivo Mentor), pinwheel, 10x8x16
  • Walther P12 (Comptograph 101), 10-key, printing, 11/12 column, electric
  • Walther Comptess (1963), 10-key, printing, 11/12 column, electric
  • Walther Comptess (1972), 10-key, printing, 11/12 column, electric
  • Walther Diwa 32, 10-key, printing, 11/12 column, electric, fully automatic ASMD
  • Walther ETR-1031S, electronic, desktop, 1973
• W&G Slide Rule Model 432, 10", Made in Australia

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Early Electronic Calculators

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

• Adler, Germany
  • Adler portable, Type EC-60, 6-digit, 1973
  • Adler "Lady", Type EC-20L, 8-digit, 1975
  • Adler financial calculator, Model 84F, Type EC-27, 1975
  • Adler scientific calculator, Model 108T, Type EC-28, 1975
• Anita (Bell Punch Company), UK
  • Anita (Bell Punch) Model 1000 desk calculator, 1970
  • Anita (Bell Punch) Model 1011 desk calculator, 1970
  • Anita (Bell Punch) Model 1011-LSI desk calculator, 1971
  • Anita (Bell Punch) Model 811 LSI pocket calculator, 1972

B

• Burroughs Model C5155, 10 digit, 3-chip LSI, 1973

C

• Canon, Japan
  • Canon Model 1210, 12 digit, DTL, 1970
  • Canon Model 162P, 16 digit, DTL, fixed program, 1969
  • Canon Model 164P, 16 digit, DTL, programmable, 1970
  • Canon Model 167P, 16 digit, DTL/LSI, programmable, 1971
  • Canon Model SE-600, 16 digit, TTL, programmable, printing, 1971
  • Canon Model L121, 12 digit, 4-chip LSI, 1971
  • Canon Model L100S, 10 digit, single-chip LSI, 1972
  • Canon Model L1630, 16 digit, 5-chip LSI, 1973
  • Canon Model L800, 8 digit, LSI, 1973
  • Canon Model L802, 8 digit, LSI, 1974
  • Canon Model L1210, 12 digit, LSI, 1974
  • Canon Model L1214, 12 digit, LSI, battery-powered desktop, 1975
  • Canon Model L1217, 12 digit, LSI, 1976
• Casio Computer Company, Japan
  • Casio Model 101, discrete-component DTL, 1966
  • Casio Model AL-2000, DTL, programmable, core memory, 1969
  • Casio Model 121-K, LSI, 12 digit, 1970
  • Casio Model AS-8S, 8 digit, 1972
  • Casio Model 101L, 10 digit, 1973
  • Casio Mini, portable, 6/12 digit, 1972
  • Casio Mini, Model CM602, portable, 6/12 digit, 1973
  • Casio Mini, Model CM603, portable, 6/12 digit, 1973
  • Casio Mini, Model CM604, portable, 6/12 digit, 1974
  • Casio Mini Memory, portable, 8/16 digit, 1974
  • Casio Mini Root-M, portable, 8/16 digit, 1974
  • Casio Mini, Model CM605, portable, 6/12 digit, 1973
  • Casio Personal Mini, Model CM607, portable, 6/12 digit, 1975
  • Casio Pocket Mini, Model CP-801, portable, 8 digit, 1975
  • Casio (Sperry-Remington) Pocket Mini, Model 1125-M, portable, 8 digit, 1975
  • Casio Model 8E, portable, 8 digit, LED, 1973
  • Casio Memory 8R, portable, 8 digit, 1975
  • Casio Memory 8F, portable, 8 digit, c.1975
  • Casio Memory A-1, portable, 8 digit, 1976
  • Casio Model FX-10, scientific, portable, 8 digit, 1974
  • Casio Model FX-20, scientific, portable, 6+2 digit, 1975
  • Casio Model FX-101, scientific, portable, 8+2 digit, 1976
  • Casio Model FX-39, scientific, portable, 6+2 digit, 1981
  • Casio Computer Quartz, Model CQ-1, 8 digit calculator/clock, 1976
  • Casio Mini Card, Model LC-78, 8 digit "credit card", 1978
  • Casio Solar Calculator, Model SL-110, 10 digit LCD, 1984
• Castle Conversion Calculator, Model 1438 - see Qualitron Conversion Calculator, Model 1438
• Compucorp (Computer Design Corporation, USA)
  • Compucorp Model 155 "Surveyor", programmable, scientific, 1971-2
  • Compucorp Model 324G "Micro Scientist", programmable, scientific, 1973
  • Compucorp Model 325 "Alpha Scientist", programmable, scientific, 1974

F

• Facit, Sweden (made by Sharp)
  • Facit Model 1111 (Sharp EL-8), 8 digit, 4-chip LSI, 1970-71
  • Facit Model 1124, 14 digit, DTL-SSI, 1968
  • Facit Model 1135J, 16 digit, 7-chip LSI, 1971
  • Facit Model 1148, 12 digit, 2-chip LSI, printing, 1973
• Friden, USA
  • Friden Model EC-132, discrete component, 1966
  • Friden (Singer/Hitachi) Model 1115, 12 digit, 1970
  • Friden (Singer/Hitachi) Model 1200, 8/12 digit, 1973

H

• Hewlett-Packard, USA
  • HP Model 9100B, programmable (core memory), 1968
  • HP Model 9810, programmable, printing, 1972
  • HP Model 35, pocket, scientific, 1972
  • HP Models 35, 45, 67, pocket, scientific, 1972-75
  • HP Models 21, 25, 29C, pocket, scientific, 1975
  • HP Model 97S I/O Calculator, printing, 1977
  • HP Model 19C, pocket, scientific, printing, 1978

I

• Imperial (Litton) Model IC-900, 8 digits, 1973

L

• Litronix Model 1100, pocket, LED, 8 digits, 1974

M

• Monroe Model 40, portable, 10 digits, 1974
• Monroe Model 273, printing, desktop, 12 digits, 1979

N

• Novus (National Semiconductor) Mathematician, Model 4510, portable, 8 digits, 1975
• National Semiconductor, Model 200, pocket, 8 digits, 1976

O

• Olivetti, Italy
  • Olivetti Logos 240, printing, 16 digit, 1970
  • Olivetti Logos 58, printing, 16 digit, 1973
  • Olivetti Divisumma 18, printing, 12 digit, portable, 1973
  • Olivetti Divisumma 422, printing, 12 digit, 1980s
• Olympia, Germany
  • Olympia Model CD-400, 12 digit, desktop, 1970
  • Olympia Model CD-200, 10 digit, desktop, 1971
  • Olympia Model CD-71, 8 digit, portable, 1974
  • Olympia Model CP-1210, 15 digit, printing, 1976
  • Olympia Model CD-402, 12 digit, desktop, 1976
  • Olympia Model CD-430, 12 digit, desktop, 1980

P

• Prinztronic Scientific Calculator, Model SC4001M, portable, 1975

Q

• Qualitron Conversion Calculator, Model 1438, portable, 1975
• Qualitron Scientific Calculator, Model 1450, portable, 1976

R

• Rockwell Model metric conversion calculator, 8 digits, 1974
• Rockwell Model 18R, pocket, LED, 8 digits, 1976

S

• Sanyo Electric Co, Japan
  • Sanyo Model ICC-1418P, desktop, printing, 1971
  • Sanyo Model ICC-82D, portable, 8 digit, 1971
  • Sanyo Model ICC-1122, desktop, 12 digit, 1971
  • Sanyo Model ICC-1123, desktop, 12 digit, 1973
  • Sanyo Model ICC-805, desktop, 8 digit, 1973
  • Sanyo Model CX-8001, portable, 8 digit, 1973
  • Sanyo Model CX-8002, pocket, 8 digit, LED, 1973
  • Sanyo Model CX-6000 "Mini", portable, 6/12 digit, 1974
  • Sanyo Model CX-8016 "Mini", portable, 8 digit, 1975
  • Sanyo Model CX-8136, pocket, 8 digit, 1976
  • Sanyo Model CY-8150, desktop, 8 digit, battery, 1975
  • Sanyo Model CY-2131, desktop, 12 digit, 1977
  • Sanyo Model CY-2132, desktop, 12 digit, 1977
  • Sanyo Model CY-5012, desktop, 12 digit, 1980
  • Sanyo Model CZ-8100, portable, scientific, 8 digit, 1974
  • Sanyo Model CZ-2171, portable, scientific, 10+2 digit, 1975
  • Sanyo Model CZ-8127, portable, scientific, 5+2 digit, 1976
• Sharp, Japan
  • Sharp Model EL-8, portable, 1970
  • Sharp Model EL-8M, portable, 1971
  • Sharp Model EL-811, portable, 1972
  • Sharp Model EL-814, portable, LED, 1973
  • Sharp Model EL-816, portable, 1973
  • Sharp Model EL-8102, portable, 1973
  • Sharp Model EL-808, portable, reflective LCD, 1974
  • Sharp Model EL-120, portable, 3-digit, 1974
  • Sharp Model EL-122, portable, 6/12-digit, 1974
  • Sharp Model PC-1802, portable, scientific, 8-digit, 1974
  • Sharp Model EL-8002, portable, 1974
  • Sharp Model EL-8011, pocket, 1975
  • Sharp Model EL-1101, portable, 1975
  • Sharp Model EL-8113S, pocket, scientific, 1975
  • Sharp Model EL-8118, pocket, slightly scientific, 1976
  • Sharp Model EL-501, pocket, scientific, 1977
  • Sharp Model PC-1201, "pocket computer", 1977
  • Sharp Model CS-363, 16 digit, desktop, 1971
  • Sharp Model EL-803, 8 digit, desktop, 1972
  • Sharp Model EL-804, 8 digit, desktop, 1973
  • Sharp Model CS-2101, 12 digit, desktop, 1973
  • Sharp Model PC-1001, desktop, scientific, programmable, 1973
  • Sharp Model PC-1002, desktop, scientific, programmable, 1974
  • Sharp Model CS-743R, desktop, printing, 1973
  • Sharp Model CS-523, desktop, printing, 1974
• Singer (previously Friden), USA
  • Singer (Friden/Hitachi) Model 1115, electronic, 12 digit, 1970
  • Singer (Friden/Hitachi) Model 1200, electronic, 8/12 digit, 1973
• Sperry-Remington (Casio), Model 1125-M, portable, 8 digit, 1975

T

• "TE8000", 8 digit, LSI, 1973
• Triumph Model 1205P, printing, 1976

V

• Victor, USA
  • Victor Tallymate, Model 85, 8 digit, 1972
  • Victor 1800, Model 18-1721, 14 digit, scientific, 1973
  • Victor Medalist, Model 204, 12 digit, 1976

W

• Walther ETR-1031S, desktop, 1973

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Original text and images Copyright © John Wolff 2002-2025.
Last Updated: 10 November 2025 - added Rockwell 203.
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