Approximately 4,825 of the Colt Model 1855 Rifle-Muskets were manufactured in .56 caliber with 37 1/2 inch barrels out of the total 9,310 military rifles estimated to have been manufactured in 1856-1864. "8047" marked on the bottom of the frame. "7489" marked on the trigger guard.

Good with gray and brown patina, mild pitting, mixed components including replacement wood, absent wedge, and moderate overall wear. Mechanically fine.