Watch List notes:

Latvia Courland 6 Groszy 1764 ICS Mitava. Ernst Johann Biron(1762-1769). Obverse: Uniformed bust right. Obverse Legend: D • G • ERNEST • IOH • IN • LIV • ... Reverse: Two crowned shields of arms. Reverse Legend: MONETA • ARGENT • DVC • ... Billon. KM 27; Mrowinski 90; Kopicki 4097 (R4) RARE