Greece ; an extremely rare set of medals . Ioannis Drosopoulos , director of National bank of Greece , 50 years commemorative medals , silver and bronze. Obv. Drosopoulos’ bust and inscription Ioannis Drosopoulos director of National bank of Greece , rev. The facade of the building of the bank and below the inscription ; for the 50 years commemoration of outstanding acts , National bank of Greece. Engraved by KΔ, Dimitriadis.