Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 173,091 pages of information and 249,766 images on early companies, their products and the people who designed and built them.

Index of makers of Microscopes, Telescopes, Binoculars, and other Optical Instruments including lasers. For makers of photographic lenses, cameras, etc., see Category: Photography. For makers of theodolites and surveying instruments see Category: Scientific Instruments.