Watch List notes:

GREECE: 30 Drachmas (1964) in silver (0,835) commemorating the Royal Wedding. Conjoined busts of King Constantine II and Queen Anna-Maria facing left on obverse. Variety: Kongsberg Mint. Inside slab by NGC "MS 64 / ROYAL WEDDING / SMALL LETTERS". Cer number: 4863701-012. (Hellas 239).