5 May, 2015 - Municipal authorities in Greece have begun writing contracts for “payments in euros or any national Greek currency” in anticipation of “Grexit”

http://www.theaustralian.com.au/news/world/greece-ports-prepare-for-new-national-currency-as-grexit-looms/story-fnb64oi6-1227336318321?nk=d9a6867e4685f9468cae6a8bc2f9d3a5

Municipal authorities in Greece have begun writing contracts for “payments in euros or any national Greek currency” in anticipation of “Grexit”