as some of you may have read i received an SKS for christmas. on the receiver beside the serial number stamping (as well as all the other serial number stampings apart from the serial number scribed on the gas return) is stamped KЛ does this meen anything to any of you? KЛ 613 is what it shows on the rifle.. this is a bit of a stumper to me which kinna sux as i love finding out the history of old rifles