It appears to be a good unmarked RK, most believe this to be the firm of Rudolph Karneth, although there are other possibilities.
Searching for anything relating to, Anton Boos, 934 Stamm. Kp. Pz. Erz. Abt. 7, 3 Kompanie, Panzer-Regiment 2, 16th Panzer-Division (My father)
looks ok to me too.
Thank you both for your advice
I agree with the others...an attributed Rudolf Karneth (6) vein Type 1 - unpebbled variant....
As Ralph stated, there are others possibilities as to who actually produced this one.
For ease of identification, collectors use Karneth.
Can you provide close-ups of the catch? I would like to see the base of the attachment area.
Best Regards, fischer