IIRC the employees used numbers, letters or symbols.
The different procedures (magnaflux, proof firing, etc) were marked at a specific place by the employee that performed that procedure. E.G. the REP in an oval stands for Remington English Proof and is on the right side of the barrel. I think magnafluxing is stamped on the right too.
Last edited by navlav8r; 09/28/22.
