I came into good fortune recently. I am very pleased to now own a vintage pump action .22 Remington. I would like to learn all I can about it, including year of manufacture. This appears to be a model 12 or variation thereof. There is no model reference stamped anywhere on the receiver. 22" barrel. The sights are very interesting - Lyman tangent type rear peep sight and flip-up front shroud. I don't know if these were original options or after market. There are a few fine cracks in the stock and a bit of looseness in receiver ; I have not yet disassembled. I did put 5 rounds through the old rifle and the function checks. I have long admired this genre of .22 ; now I have one. It came as a surprise - how fortunate I am!