Billy G, congratulations to your find. I do appreciate these kind of bajonets so much that I do own two of them. A MAUSER (!) and a HENKEL. and I know also a best conditioned no maker mark in a collection.
Can you show a closeup of the maker mark as I think it correctly should read "...Maschinenfabrik..."(= factory of machines) and not "Faschinenfabrik". I think perhaps part-stamping led to this error?