I picked up an SKS "paratrooper" a few months back from my brother in-law. I hadn't fired it because I never had to time to go over it too well. So I just pulled it out of the safe and started looking it over. While doing this, I noticed there is no stampings on the trigger guard,gas tube,dust cover,charging handle or carrier. The only serial number I can see is on the receiver. It is an Arsenal 26 made in 1967. Ive tried to research a bit on why it is not stamped on the other parts. Am I overlooking something? Does anyone have input on this or a place I can find it?