Otis A.Smith was a gunmaker in Middleton & RockFalls, Conn. in the 1870s to 80s. He held a number of patents for firearms and made mostly inexpensive, but reasonable quality, hand guns in calibers from .22 to 41, centerfire and rimfire. It is estimated a few thousand were made, sometimes under the names U.S.Arms Co., Maltby-Henly, Columbian, etc. Both solid frame and top break models and are considered an American arms oddity. I recall an incident years ago when I was at the table of a prominent S&W collector at a gun show and a man came up to the table and said a little old lady had just come into the show with a paperbag holding a cased , gold plated , engraved Smith & Wesson revolver and wanted $100 for it. The collector quickly gave the friend the $100 to go buy the gun and he came back with an Otis A. Smith .32 spur trigger with pawn shop engraving and some gold wash . Ed.