Also, I have in my notes that a W. Diemb/Diem of Suhl who was a barrel blank maker and may have been associated with Ziegenhahn. For sure a Diem was a cohort of Ziegenhahn, which has an interesting translation.

[Linked Image from jpgbox.com]
Lindner Daly - Diamond Quality

Here's that proverbial >>D<< on the barrel flats that I attribute to a mechanic Diem. I have yet to see the said >>D<< on a Sauer offering.

Serbus,

Raimey
rse