Japanese Type 30 Bayonet Trainer?

[browningautorifle]

The blade just shows signs of misuse. I saw enough of that in peactime army blades let alone something from that era. The plate I think is from a display like a museum to help identify from an accompanying list. Museums sometimes sell surplus items to get actual cashflow. Nothing too mysterious about this one I shouldn't think...Japanese Arisaka blade, see this site BAyonet Collection Presentation