RARE EARLY COOPER POCKET REVOLVER. SN 100. .31 cal. 4" oct bbl. Marked "MANFd BY J.M. COOPER & Co PATd JAN. 7 1851 / PITTSBURGH PA REISSd JULY 26. 1853" on top of the bbl. Note the alternating oval and rectangular stops on the cylinder. The backstrap and trigger guard...