12 bore sidelock with clockhand 100538 with single crown on left tube and what looks to be a single "Caveman" with a "Club" on the right as well as left flat noting assembly by a mechanic, O.K. Barbarian, at the Sauer plant. H. Krieghoff, Lindner and others had marks that held similar positions, sometimes on the tubes and sometimes on the flats.

Sauer #34521 has the 2 crowns as well as Suhl at the rear of the right flat and Sauer on the rear of the left flat. It is a Model 5 with Eduard Kettner's name on the toplever.

Yes, we've got several hundred to go, if not an even thousand.

Kind Regards,

Raimey
rse