1967, Greece (Greek Junta). Silver 50 Drachmai CoinMint Year: 1970 Reference: KM-93. Denomination: 50 Drachmai - The coup d'état of 21 April 1967.Material: Silver (.900) Weight: 12.5gmDiameter: 30mmOn 21 April 1967, just weeks before the scheduled elections, a group of right-wing army officers led by Brigadier Stylianos Pattakos and Colonels George Papadopoulos and Nikolaos Makarezos ...