Pocket percussion revolver manufactured by C.R. Alsop of Middletown, Connecticut c.1863. The revolver has a 4-inch octagon barrel and six-shot cylinder with distinctive spur trigger frame and offset hammer. The barrel, frame and cylinder have a high polish blue finish. The hammer and loading lever are color casehardened. The two piece grips are rosewood with a high polish 'piano' finish. The top barrel flat is roll-stamped: "C.R. ALSOP MIDDLETOWN CONN./PATENTED JULY 17. AUGUST 7. 1860. MAY 14. 1861." in two lines. "C.H. ALSOP. PATENTED/NOV. 26. 1861" is roll-stamped in two lines on the side of the cylinder. The serial number "655" is stamped on the left side of the frame beneath the grip and written in pencil on the inside of both grips.