Only an estimated 1,156 Model 1811 pistols were manufactured c. 1811-1813, and only 606 were originally manufactured with a pin fastened barrel as seen on this very fine example, making this among the rarest of all the U.S. martial pistols. Many have no doubt been lost over the last two hundred years. The lock is marked with the spread wing eagle motif over "U.STATES" in front of the cock and "S.NORTH/BERLIN/CON." behind it. "P/US" marked on top of the barrel at the breech, and a "P" marked on the top strap. The lock and its components are marked with "x" assembly marks, and the remaining visible screw heads on the pistol have "I" and "o" assembly marks. "V/HHP" inspection initials marked on the left stock flat. Includes a proper hickory ramrod.