These seldom encountered Simeon North U.S. Model 1813 pistols were the first U.S. martial arms that stipulated interchangeable parts in the contract. Originally, 20,000 of these pistols were ordered on contract with Simeon North, but the contract was revised to .54 caliber resulting in the Model 1816 because these .69 caliber pistols were seen as having excessive recoil. Of the 1,626 completed, only 626 were delivered to the Army. The Army version is the same as the Navy other than they lacked belt hooks. The pistol is sightless and has "P/US" on the upper left and "H.H.P." on the upper right of the barrel at the breech, an outline of a cartouche on the left stock flat, "S. NORTH/U[eagle]S/MIDLN CON." on the center of the lock, iron furniture, and a hickory ramrod with tapered front tip and slotted iron rear tip.