I love those stag handled fighters.
This is my only contribution and it's a slim addition
This is a German commercially available knife marked
"Solingren" I am assuming that this is a post ww1 knife.
It is a massive knife. It is 13 inches long and the blade is
nearly 7mm thick and weighs just a couple ounces under
a pound. It is razor sharp and I have no doubt that it
could pretty much take an arm right off an approaching foe.