misstamp

misstamp

(ˌmɪsˈstæmp)
vb
to stamp badly
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
It has usual patent markings on the left side of the frame and an unidentifiable cartouche on the left grip, but the "U.S." markings are inappropriately stamped or misstamped. There is no serial number anywhere.