Your rifle was made in Hiroshima, under Tokyo supervision. The bolt matches too, that's a plus, many dont.
It's been sportered, as you can tell. It's a "transitional" rifle, not quite last ditch since it doest have many of the later featureless features, probably made in early '44. I have a 8th Nagoya that is a full last ditch, made in September of '44.
The good news is its salvageable if you want to, it would need a stock, forend,and handguard, front and middle bands, and a cleaning rod. I'd guess you could get it right for about $200, the stock being the most expensive part. Check ebay and numrich for parts. If you want to restore it, send me a PM and I'll help you find parts, Japanese and Italian WWII weapons is my C&R thing. Ammo isn't that hard to find either, I have almost 250 rounds myself and they do shoot good.