UBB.threads Forums Edged Weapons Miscellaneous Dagger Forum Trench Knife ID ?

I started a small collection of Imperial Stag handled Trench Knives a few years ago.

This is one that I bought at a local Buy & Sell 2nd hand junk store about 5 years ago.

I thought at first that it was one of the cheap 1950s repros and just put it away. recently rediscovered it, and now that I have been studying it, I'm not so sure.

It looks much older, and is very unusual.

Any thoughts on it would be appreciated.

Thanks...