Question on Arisaka Type 38 carbine

[Slow Ride]

Hello All. I found this Type 38 carbine at a LGS. I think it's an early production, it has no series and a 5 digit serial number. The bolt doesn't match, bore is in good shape. My question is about the lack of a mum. I can't see any evidence of one ever being there. I originally thought it might have been a trainer, but it doesn't have any other characteristics of a trainer. The chamber doesn't show any signs of modification and the barrel looks like it's still 6.5mm, although I don't have any 6.5 jap rounds handy to see if it chambers okay. Appreciate any thoughts on this.

[RazorBurn]

The stock looks damn near looks like the one on a Type 44 Calvary Rifle. It's definitely a Type 38 by the Japanese numbers. It looks to me like it is a Type 38 Calvary Rifle. Hard to tell about the mum, but my money is on scrubbed.

I know the Type 44's bring a bit more money as they're not as common to see in the wild, and I would assume a Type 38 Calvary Rifle would too.

[Cj556]

It’s a Type 38 Carbine, an early gun will match by assembly numbers not serial. Bolt and Bayo lug will match a number on underside of receiver. It’s not a trainer or at least not a purpose built one. Mum was scrubbed it’s possible someone blued over it.

[Slow Ride]

Thanks. The assembly numbers are the same with everything but the bolt. The bolt pieces match each other, except for the firing pin.