⅔ Thaler - Christian V

Christian V of Denmark held Oldenburg as a hereditary possession, and the county's coinage of this period was effectively an extension of Danish monetary policy rather than any expression of local autonomy. The ⅔ Thaler denomination — a fraction calibrated to the North German gulden convention — was widely struck across the region in the late seventeenth century as trade demands pushed mints toward compatible, interchangeable silver units.

Davenport's attribution to SG#721 places this firmly within the Schleswig-Holstein grouping, a classification that reflects the administrative tangle of Christian V's northern territories more than any geographic logic.