20 Drachmas 1976 Greece Diameter (mm): 29 Weight (g): 11.15 Composition: Copper 92%, Alumnium 6%, Nickel 2% Edge: Lettered Designer: Th. Papagiannis, L. Orfanos Obverse: Parthenon, denomination (20 drachmai) and the words Hellenic Republic Reverse: Bust and the words Pericles Date