Photo illustration of a drachma coin on display in Athens

A drachma coin is seen on display in this photo illustration taken in Athens May 9, 2012. Banks are quietly readying themselves to start trading a new Greek currency. Some banks never erased the drachma from their systems after Grece adopted the euro more than a decade ago and would be ready at the flick of a switch if its debt problems forced it to bring back national banknotes and coins. Picture taken May 9, 2012. REUTERS/Yorgos Karahalis (GREECE – Tags: POLITICS BUSINESS)