I have an old six shooter pinfire pistol that is marked "KIRNER J. PESTEN" on the top of the barrel. The barrel is 3.5 inches long and the pistol is 8 inches overall. It has some pretty fancy etching and has a rifled barrel. The trigger has no guard and will fold down. The handle stock is med-dark wood and has a swivel ring. The 3 digit serial number is stamped below the cylinder on the side and starts with "J.K." There is a pushrod to clear the cylinder. I think maybe Belgium?