In addition to being a prolific gunmaker Leman also sold gunmounts and locks. Don`t assume just because his name is on the lock that he made the gun. Not necessarily so. In the case of rifles with a signature on the barrel that is usually ( but not always) the maker. Many barrels were marked Remington for example and they did not make the gun, just the barrel. Leman stocks were renowned for the artificial striping on the wood. He made a lot of guns for the indian trade and for the western migration. Many of the guns turned in by the Sioux after their eventual surrender were Lemans.