I posted this months ago but it didn't draw any responses. Thought I'd give it another try. "I purchased a Browning SA-22 at a gun show this past weekend. Based on the S/N, the gun was built in Belgium around 1959. Something odd however. I wasn't aware the S/N was stamped in the front of the receiver until I was doing a little additional research on line. I only saw the S/N on the rear of the stock on the ring surrounding the magazine tube. In comparing the two numbers I found the S/N on the receiver is 1,060 lower than the number by the mag tube. The numbers contained in the S/N would seem to rule out human error in stamping the gun, ie: 59 stamped as 95, etc. Even with the difference, both numbers would still seem to indicate a 1959 build date. According to the dealer I purchased it from, and I trust him completely, he bought the gun from the original owner who purchased it new in 1962, Any theories on why the numbers would be different??? "