Manufactured c. 1877. Matching numbered Bridgeport barrel marked "CAL.45 2 1/10" on the left. Included factory letter lists the rifle in .45 caliber using the 2 7/8 inch shell (likely a factory error), with a 30 inch octagon barrel, double set triggers, open sights, and oil finished stock, and that it was Schuyler, Hartley & Graham on 28 December 1877.