Issued by Germany (Deutsches Reich) in 1942 to commemorate the European Postal Congress held in Vienna, this striking semi-postal stamp features a dramatic engraving of a mounted courier blowing a post horn—an iconic symbol of historic European postal services. The dynamic equestrian design reflects speed, communication, and state authority, rendered in classic wartime engraving style. The denomination 12+38 Pfennig indicates a surcharge, typical of Third Reich issues, adding postal history significance. Designed by E. Meerwald and engraved by R. Zenziger, this stamp is a key thematic piece for collectors of postal history, WWII-era Germany, and postal congress issues.