Watch List notes:

GREECE: 500 Drachmas (1988) in silver (0,900) commemorating the 28th Chess Olympiad. Composition with chess table and inscription "28η ΟΛΥΜΠΙΑΔΑ ΣΚΑΚΙΟΥ ΘΕΣΣΑΛΟΝΙΚΗ 1988" on obverse. Inside slab by CCG "PF 70 / 28th Chess Olympics". Cert number: AA848762". (Hellas CD.24).