Serial number 117. Made circa 1819. 54 caliber with 28” barrel. Very fine and extremely rare gun. The metal has been refinished long ago. All markings are present and sharp. The butt stock has beautiful burled wood with a lot of figure. The action works perfectly. The Collier firearms are believed to be the inspiration for Sam Colt to create his self revolving pistol.Very fine example with only a few examples known and very few in private hands!