Frank Allan really is into these & I'm sure will have lots to say about it. I had one of these once but let it go. Can't do everything I'd like. Now I restrict my collecting to what was produced & used by the Japanese in WW2. I even sold my Saimese marked Nagoya Triangle bayonet to Frank some time back. These are scarce & it looks like you have a nice one.
"Now remember, when things look bad and it looks like you're not gonna make it, then you gotta get mean. I mean plumb, mad-dog mean. 'Cause if you lose your head and you give up then you neither live nor win. That's just the way it is"