No records have surfaced for establishing year of production by serial number.Production started in 1975 and ended in 1976.All serial numbers start with a J followed by five or six numbers, the first one always being a zero.Produced with 22-inch barrel only, Proof Steel.Manufactured by Winchester Canada at the Cooey Brook Road North plant in Cobourg, Ontario.Do you have additional comments to add to the list ? Are there errors ? Any data on the original MSRP price ? I apologize if this post is repetitious, but to get my facts straight in anticipation of a purchase I made a list of all the information I could find on this model.