Who made this holster?

[Aaron]

Thanks much for your information which proved to be absolutely correct. Amazingly, Constanza on page 369 states epf is an unknown code, but I just discovered that on page 376 he says epf represents Karl Bocker Lederwarenfabrik. I note that Karl Bocker also used the code eqf. I wonder if by some chance the q and the p became accidentally interchanged at the factory.