I bought a new 1897-1997 in 1997. The stock checkering was fuzzy and very disappointing. I sent the gun back to the factory and they replaced the stocks. When the gun was returned to me an now has a double JM stamp. I didn't call the factory, but I just took it for granted that they proof tested the rifle before returning it to me and documented the 2nd proof testing with a 2nd JM stamp.