Wagners Ring Cycle Concentration game

This one is pure gold I did not know I still have it, it is my wagnerian memory game done for my friends several years ago as a christmas present I think, it is in czech so sorry if it is confusing but for me it is very precious in this shape, lot of memories behind it , you can see I am one opera geek (is it even possible to match those two words together? XD ) !