This is cool looking old military pistol. This is the U.S. model 1816 flintlock pistol. It was made by the firm of Simeon, North of Middletown, Connecticut. You can see some of the maker's mark still visible on the lockplate along with parts of the eagle and "US" mark. The barrel is .54 in caliber size and is full-length at 9-1/8th inches. You can still clearly see the inspector initials on the breech of the barrel. It also has the "MS" stamping that lets us know that it was used by the state of Massachusetts at one time. According to Flayderman's guide they only made these for three years from 1817 until 1820 and they only made 19,374 of them. This one has a gray tone all over. The gun was converted from the original flintlock condition to percussion. It is very interesting how this process has been done. They added a rounded edge drum style bolster for the nipple. You can still see a portion of the brass flash pan from when it was a flintlock. This style of conversion in its crude form is often referred to as being a Southern conversion but we can't say for sure. The action of the pistol catches well on both of the positions. The stock has an ancient dark color all over. On the flat of the stock opposite of the lockplate you can see the remnants of the inspector cartouche as well as the matching and correct Massachusetts "MS' marking. This is where the gun was originally approved for military service. It has a modern made wooden ramrod in the channel underneath the barrel. This is a nice original model 1816 United States Military flintlock pistol by Simeon North with a great looking conversion to percussion.