Approximately 10,000 U.S. Army Rolling Block rifles were manufactured c. 1871-1872 by Springfield Armory under a royalty agreement with E. Remington & Sons. "MODEL 1871" marked on the left of the receiver and an eagle and shield over "U.S./SPRINGFIELD/1872" on the right. The upper tang is marked with the two-line Remington patent date markings. Equipped with a blade/bayonet lug front sight and 1,000 yard folding ladder rear sight. Full length stock with two barrel bands and an end cap, an oval script "ESA" (Erskine S. Allin) cartouche stamped on the left of the wrist, and "US" marked on the buttplate tang. Includes a "US" socket bayonet.