Sorry You do not want to belive it - this the matter of a wide opened mind. I don't belive the guy I get the knife would try to fool me or someone else for 50 PLN ($16) - thats what I paid for this crap :-).
Have You ever found a dagger in the ground ? I did several times (sa, SS) and belive me steel parts were always eaten but enameld pins and nickel silver eagles were intact. All I had to do was gently cleaning. So I did with this HJ emblem and belive me there was a lot of rust and patina - old patina under it and were the emblem touched the handle.
This is my lasy input here.
Best regards to All
Piotr
