For the letter O - Otto Dix
2016 - Germany - Arts, Culture, and Entertainment
Designer: Prof. Annette Le Fort and Prof. Andre Hers
According to wiki, Otto Dix is considered as one of the most important artists of the New Objectivity movement in German art. For his 125th birthday, the Deutsche Post issued this commemorative stamp.
For more stamps with the letter "O", visit See it on a Postcard