Manufactured by A. H. Waters of Millbury, Massachusetts, circa 1855-1856. The carbine has the distinctive monkey tail operating lever with oval ring. The round barrel is blued and has a wide base iron front sight and with late pattern folding leaf rear sight. A sling bar and ring are mounted on the left stock flat. The flat, bevel edged lock plate is unmarked and the nipple bolster has a clean-out screw. The lock plate, hammer, operating lever and sling bar mount are casehardened. The barrel band, trigger guard and buttplate are brass. The oil finished stock is straight grain American walnut. The top of the breech lever is roll-stamped: "PATd BY/B.F. JOSLYN/AUG. 23. 1855" in three lines. There are no visible markings on the lock plate. The serial number "468" is stamped on the right side of the breech lever. A rack number "115" is stamped on the underside of the stock behind the trigger guard finial. Two Ordnance inspection marks consisting of the script initials "TDL" enclosed in a rectangle are stamped on the left stock flat above the sling bar. A. H. Waters manufactured an estimated 1,500 Joslyn Model 1855 Carbines; some 1,200 were purchased by the Ordnance Department and several hundred carbines were issued to the 2nd, 3rd, 4th and 6th Ohio Cavalry regiments early in the Civil War.