Hellenic Republic Drachmai--the third Hellenic Republic which dates from 1974 to the present date.  

The portrait in left profile of Georgios Karaiskakis (1782-1827), a famous Greek klepht, armatolos, military commander, and a hero of the Greek War of Independence

This coin with images was minted at the National Mint of the Bank of Greece from 1972-1980.  It is made of Nickel brass (79% Copper, 20% Zinc, 1% Nickel)