Watch List notes:

Latvia Courland 1 Grosz 1763 ICS Ernst Johann Biron(1763-1769). Obverse: Crowned 'E J' monogram. Reverse: Two crowned shields of arms. Reverse Legend: MON. ARGENT. DVC. CVRLAND. Billon. Mrowinski 80; Kop.4088 (R3) RARE