I am trying to identify my great-grandfather's revolver. He was a police chief back in the early 1900s. I'm afraid I'm not even sure of the model or caliber, so any help here would be GREATLY appreciated.
This is a top-break, safety hammerless revolver (I think). The only markings I have found are the serial number on the bottom of the butt (61xxx) and again on the inside of the chamber. There is also "Smith & Wesson Springfield Mass U.S.A. PAT'D FEBY. 20. 77. DEC. 19. 77. MAY 11. 80. SEPT. 11. 85. OCT. 2. 85. TWO AUG. 4. 85" engraved in the top of the barrel.