A nice piece, very well struck.
Obverse: in the rope border half-figures of three rulers, above their heads the date 1599, in the outer border the legend:
CHRISTIAN-IOHAN:GEORG-ET-AVGVSTVS;
Reverse: thirteenth-field shield of the coat of arms surmounted by the family jewels, in the rim legend:
HB-FRAT-ET-DV-CES-SAXON-;
Silver, diameter 40 mm, weight 29.3 g.