Welcome to TNet digger!
Terry is probably right!
Also there used to be, in the 50s up through the 70s, a national chain called The A & N stores. They carried Army and Navy surplus stuff and hunting clothes etc. They had bayonets and some pocket knives that were genuine and you could buy a bayonet for about three buck, mostly foreign stuff. I went to the grand opening of the store in my town and everyone got a door prize of a brand new Us Army WW1 knapsack. Don't know whatever happened to it.
Nice find! Good luck and best wishes!