.69 caliber. 42" barrel secured by three flat, spring-retained barrel bands. NSN. Bright finish, iron furniture, smooth walnut stock. Single shot muzzleloading smoothbore infantry musket. Standard Springfield lock markings consisting of a {Spread-Winged Eagle} / US forward of the hammer and in three vertical lines at the tail of the lock SPRING/FIELD/1853. Matching 1853 date on the breech plug tang with standard V/P/{Eagle Head}. Counterpane of stock with fairly clear script JS cartouche, the mark of Springfield Arsenal inspector James Stillman. A nominally .5" capital "W" is stamped on the reverse of the stock, the meaning of which is unknown. Retains original brass blade front sight, both sling swivels and a correct full-length trumpet head ramrod with good threads at the end. A very nice example the last of the US military smoothbore muskets.