This stamp originates from Nazi Germany’s definitive series featuring Adolf Hitler, issued during the early 1940s. It shows a profile portrait of Hitler in carmine red with a 12 pfennig denomination. The overprint “OSTLAND” designates its use in the occupied Baltic territories (Estonia, Latvia, Lithuania, and parts of Belarus) under the Reichskommissariat Ostland during World War II. These overprints were applied to standard German issues for local postal use in occupied regions. Such occupation overprints are historically significant as they reflect Germany’s wartime expansion and administration policies. This piece is an essential item for collectors of WWII occupation issues and German philately.