Formerly cleaned.
A more interesting example of an early 5-mark.
Obverse: the ruler's head to the right, below it the mint mark D, in the rim the legend:
LUDWIG II KOENIG V. BAYERN;
Reverse: eagle of the Reich, in the rim legend:
DEUTSCHES REICH 1877 5 MARK;
Gold .900, catalog weight 1.991 g.