High Quality Content by WIKIPEDIA articles! The ten euro (€10) note is the second lowest value of the euro banknotes after the five euro note and has been used since the introduction of the euro (in its cash form) in 2002. The ten euro note is the second smallest at 127x67mm with a red colour scheme. The ten euro note shows the Romanesque era (between the 11th and 12th centuries). It is consequently used daily by some 332 million Europeans. The ten euro banknote is used in the 23 countries which have it as their sole currency (with 20 legally adopting it) in Europe.