I have an East German made, "J P Sauer - Suhl", 16 ga gun, proof dated May 1959. Near the breech near the top of both barrels is stamped four interlocking rings. This symbol is recognized as the Olympics Logo. I understand that at some point E-TW ceased to use it under threat of a lawsuit.

My questions are (1) when did they first use it, (2) for how long, and (3) what prompted them to use it in the first place? Was this stamp used on products for sale to the Eastern Bloc only, or for general distribution?

I believe that at one time Suhl was the center of East German competitive shooting sports. However, I do not know if these matters were related. Thanks.