.58 caliber. 40" barrel secured by three flat, spring-retained barrel bands. NSN. Bright finish, iron furniture and patchbox, walnut stock. Single shot muzzleloading percussion ignition rifle musket with Maynard automatic tape priming system. Lock marked U.S./HARPERS FERRY forward of the tape primer magazine, primer door with {Spread-Winged Eagle}, rear of lock dated 1860 horizontally. Breech with weak matching 1860 date and left angled flat with V/P/{Eagle Head} inspection marks. Counterpane with two weak script cartouches, the first is essentially illegible but is probably the AMB of Harpers Ferry Master Armorer Armistead M Ball, and the second the JAS of Harpers Ferry's James A Schaeffer, the foreman of the stocking department. The gun is rack numbered 90 on the top of the wrist behind the breech plug tang. The gun retains the correct pattern of 1858 3-leaf long range rear sight, with the 300-yard leaf missing, the original musket pattern combination front sight and socket bayonet lug, both sling swivels and a correct pattern swelled shank tulip head ramrod. A partial roll of Maynard primers is in the magazine on the lock and a spare roll and two spare percussion cones are in the patchbox. 7,349 Model 1855 Rifle Muskets were produced at Harpers Ferry in 1860.