Greek drachma became Greece's sole currency. Between 1917 and 1920, the Greek government issued paper money in denominations of 10 lepta, 50 lepta, 1 drachma, 2 drachmae, and 5 drachmae. The National Bank of Greece introduced 1000-drachma notes in 1901, and the Bank of Greece introduced 5000-drachma notes in 1928. The Greek government again issued notes between 1940 and 1944, in denominations ranging from 50 lepta to 20 drachmae. In 1922, the Greek government issued a forced loan in order to finance the budget deficit. On April 1, 1922, the government decreed that half of all bank notes had to be surrendered
Greek drachma copper, or iron ingots denominated by weight. A hoard of over 150 rod-shaped obeloi was uncovered at Heraion of Argos in Peloponnese. Six of them are displayed at the Numismatic Museum of Athens. It was the standard unit of silver coinage at most ancient Greek mints, and the name "obol" was used to describe a coin that was one-sixth of a drachma. The notion that "drachma" derived from the word for fistful was recorded by Herakleides of Pontos (387–312 BC) who was informed by the priests of Heraion that Pheidon, king of Argos, dedicated rod-shaped obeloi to Heraion. Similar information