98k BNZ 43 S...any idea what the S is for?
Been going through my 98k collection and have a BNZ 43 S and the "S" is throwing me. It is not the SS rune but a regular S under the serial number. Notice in Blue Book that the BNZ S is double value compared to regular 98k's. Any expert know what the S is for? I am thinking it is SS but not being a rune is strange. Concentration camp made? Suggestions?