Marked "US / I.N. JOHNSON" on the lock plate in front of the hammer, "MIDDTN / CONN / 1853" vertically at the rear. The date on the barrel tang cannot be read and the left rear of the barrel is marked "US / SK / P". Brass mountings, blade front sight, swivel type steel ramrod with a button shaped head and mounted with a one piece walnut stock with "LK" and "WAT" cartouches and a brass buttcap. Approximately 10,000 of these pistols were manufactured 1853-1855.