Estonia joined the Euro zone as its newest member on 1st Jan 2011 and Estonian Post issued a stamp to celebrate this occasion.
The euro denomination appeared parallel with the kroon on an Estonian postage stamp for the first time in 1999 when the stamp dedicated to the 50th anniversary of the Council of Europe was issued. In the period from 2006 to 2010 the face value on Estonian stamps was shown in both kroons and in euros.
The stamp issued to mark Estonia\’s transition to the euro currency is the first Estonian stamp on which the face value with the symbolical denomination of ˆ1 is indicated in euros alone.
Stamps with the face value in kroons will be valid for postage until December 31, 2013; stamps with the face value in two currencies will be valid for postage indefinitely.