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
Mark (currency) and could be transferred by endorsement, and were accepted as payment. They could also be redeemed. This currency proved to be very stable. Following German unification in 1871, the country adopted the German gold mark (officially known just as the "mark") as its currency in 1873. The name was taken from the mark banco. Initially, the coins and banknotes of the various predecessor currencies, such as the , the , and the guilder, continued to circulate, and were treated as fixed multiples of the new unit of account, similarly to the introduction period of the euro between 1999 and 2002.