I bought this Type 32 Ko sword as a novice and I've taken more time more to research what the details are. It seems like this is a very strange version if not a fake. Here's what I noticed:
1. A strange serial number, the font is different, it's small, and the numbers are too close.
2. The clasp is a rounded point, not is a wedge shape.
3. There are no additional markings, not on the scabbard or on the guard.
4. No leather washer.
5. The throat has the bolt protruding.
6. The handle is shaped differently, it's more of a tube shape.
7. The fuller starts and ends far away from each end of the blade.
8. The blade doesn't have a clear edge, very dull and round.
Is this authentic? It has so many things that I question now, but overall it looks like it could be real, although I have no idea.