Watch List notes:

GREECE: 50 Drachmas (8.12.1978) in blue on multicolor unpt with Poseidon at left. S/N: "07Λ 1000000" (1 million serial number) . WMK: Polyzalos of Delphi. Inside plastic holder by PMG "Gem Uncirculated 65 - EPQ". (Pick 199a).