Watch List notes:

GREECE: 50 Drachmas (1.10.1964) in blue and purple on multicolor unpt with Arethusa at left. S/N: "16T 902615". WMK: Youth of Anticythera. Printed by Bank of Greece. Inside holder by PCGS "CHOICE UNC 64 - PPQ". (Hellas 195) & (Pick 195a).