A nice piece of gold coinage of the first electoral king of Poland.
Rarer third type ecu d'or of this ruler with a religious legend on the side of the cross.
Obverse: crowned coat of arms of France, in the rim the legend:
HENRICVS-III-D:G-FRAN-ET-POLO-REX-B-;
Reverse: stylized cross, in the rim legend:
+CHRISTVS-REGNAT:VINCIT-ET-IMP 1581
Gold, diameter 24 mm, weight 3.4 g.