Marlin Manufacture Dates. Receivers There were at least 3 changes inside the receiver that we are aware of. First year of production saw 2 machined lips for the front top of the magazine to. USAF Serial Numbers Last revised November 4, 2017. Sap Lsmw Error Log Download more. In mid 1938, Remington and the Federal Bureau of Investigation worked together to develop a replacement for the Winchester Model 1907s that were then in. PHk1tfetd4o1_1280.png' alt='Winchester Model 12 Serial Numbers By Year' title='Winchester Model 12 Serial Numbers By Year' />Browse all new and used Winchester Shotguns Model 97 for sale and buy with confidence from Guns International. Production of the Winchester Model 70 started in 1935. It has gone through many changes over the years, but is currently still in production today. Winchester Firearms Manufacturing Dates by Serial Number and Year 1866 through the early 1990s The following pages were scanned from documents compiled over the years. Albert King The Big Blues Rar. Browse all new and used Winchester Shotguns Model 12 Pigeon Grade for sale and buy with confidence from Guns International. T.jpg?1445417331' alt='Winchester Model 12 Serial Numbers By Year' title='Winchester Model 12 Serial Numbers By Year' />The table below represents the serial numbers and production dates of Winchester Model 12 Shotguns. I have an Iver Johnson serial number I 33714 Im trying to find out the model production year and any other info I can get on it.