Leman built rifles in three phases. A general shop that produced rifles of standardized pattern of very good quality, the Conestoga Rifle Works that produced cheap rifles, and the custom shop.
The custom shop might add details to a production rifles or build entirely custom rifles of the finest quality. There is a rifle in the Lanc. Historial Society that is as good or better than the one pictured.
Leman made locks for sale . Having a Leman lock does not make it a Leman. Having a Leman stamp on lock and barrel does. Without it the attribution is spurious.