A nice piece, well minted, which is rare for these issues.
Issue minted in Rennes appreciated in the latest catalog with the highest degree of rarity for this vintage - R3.
Obverse: in a double linear border a cross with decorative arms ending in stylized lilies, in the outer border a legend:
+HENRICVS-III-D:G-FRANC-ET-POL-REX-1578;
Reverse: crowned escutcheon with lilies of the Bourbons, between Roman numeral II-II, surrounded by legend:
SIT-NOMEN-DOMINI-BENE DICTVM 9;