I just recieved a 22 rifle from my dad. It has Premier Trail Blazer engraved in it and the # 2220 with a k under it. I'm taking it that it is not worth much, but what does the number 2220 k represent? An interesting thing about it, is that it has the Roman number X stamped in various places including on the wood stock and metal parts. The X is very neat and is engraved. Wonder what was used to stamp the X's in and why? Sorry, don't know a lot about guns. Just wondering.