Manufactured 1865. Matching serial numbers on the barrel, left side of lower tang, and stock inlet. Illegible buttplate serial number.Firing pin absent. Only around 14,000 Henrys were manufactured in 1860-1866, and around half of them are believed to have been used by Union soldiers, mostly purchased by the men themselves, some using reenlistment bonuses. "That damned Yankee rifle that can be loaded on Sunday and fired all week" was one of the most advanced firearms of the war.