The Butterfield Revolvers were manufactured by Jesse Butterfield of Philadelphia, Pennsylvania, in 1862. They are considered by collectors to be secondary U.S. martial handgun since they were manufactured in anticipation of an unrealized government contract. Because no contract was awarded, production was limited to only about 640 revolvers. It is equipped with a special disc priming device loaded by loosening a thumb-screw in front of the trigger guard. The top strap is marked "BUTTERFIELD'S/PATENT DEC 11. 1855/PHILADA". Various components are marked with the matching serial number "77", including the underside of both grip panels.

Very good, with smooth brown patina and some patches of light pitting on the blue finished barrel, loading lever and cylinder, and strong traces of original silver finish in protected areas, strongest on the grip frame and underside of the frame plates, with the brass exhibiting an attractive golden aged patina on the exposed surfaces. Grips are also very good as repaired/refinished, with scattered light scratches, a few minor dings, a re-glued cracked section at the top of the left panel, and some filled in repairs visible at the bottom front of the right panel. Mechanically fine.