Hi .. My first time on so hope I don't screw it up. I have a T38 6.5 that has and never had a MON (Ka MON) and it has no manufacturers characters on left side of receiver. Four digit SN on left side of receiver. Character in Chinese read From top to bottom 6/5 infantry and a character that in Japanese means Spruce as in the tree. No other markings. Barrel is original without any sign of refinish and receiver and tik alignment marks are original. Stock is single piece not the "normal" two piece Japanese. All other aspects are identical to Japanese Type 38. If someone will send SIMPLE instruction maybe I can post a pic.