I would be pleased, if some one has an idea about this marks. I do not know, whether the "SS" (or "?SS" - if there is a rest of a letter above the "SS") mark is the city mark.
Engraved rat tails I mostly know from Denmark and northern Germany. But there I found no comparable marks and objects.
The only city mark in Germany I know, where a double "S" in the 18th century sometimes was used is Saalfeld in Thuringia.
Best regards,
Ringo


