Incidentally,

The Z-M proofed drilling that was 8x58 is long since gone. I brought it back to the seller since it was misrepresented in July.

I had a second nearly identical Henri Roux type drilling in superior condition that was proofed at Suhl that was discussed in another thread. It is most definitely a 8x57 JR and in proof. (1/1929 proof date at Suhl)

-Rookhawk