A nicely preserved piece of the rarer 20-mark.
Obverse: the king's head to the left, below it the mint mark E, in the rim the legend:
IOHANN V.G.KOENIG VON SACHSEN;
Reverse: eagle of the Empire, below it the denomination marking 20 M, within the rim the legend:
DEUTSCHES REICH 1873;
Gold .900, catalog weight 7.965 g.