Somebody saw ring like this or may be know what does it mean symbol

In the shield it looks for me like a high stylized map with the rhine river. One side the iron (german) cross, other side a french "Hugenotten" cross.
I have seen very similar designs in westwall remembrance pins.
The sword stand as a symbol for fighting.

Is this a silver ring? If yes i think the hallmarks can say us more.