This stamp originates from the German occupation administration known as Reichskommissariat Ostland during World War II. It is an overprinted issue applied to existing German Germania definitive stamps, featuring the imperial shield motif. The bold blue “20” overprint converted earlier stocks for postal use in occupied Baltic regions including Latvia, Lithuania, and Estonia. Such occupation overprints are historically significant, reflecting wartime postal logistics and administrative transitions. Genuine examples are actively collected under WWII occupation and German area specializations. Well-centered copies with clear overprints remain desirable among advanced collectors.