Top of barrel has stamped: xpert-pat sep.23,1878. This 4 3/4" long barreled derringer works good, with metal grey color, no rust. the burl wood grips look good. Has bead front sight. this chambers the .22 short. Possibly made by Allen Co.
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I am an estate dealer, and buy whole contents of homes, mostly gun smith's estates. Been doing this for 40 years. Never know what I'll find next.We look for the unusual, we don't buy new guns from wholesalers, and resell! !KEEP CHECKING MY INVENTORY. We don't do feedback this isn't EBAY! Thank you.