This Austrian commemorative stamp, issued in 1979, marks the 150th anniversary of the Erste Donau-Dampfschiffahrts-Gesellschaft (First Danube Steamship Company). It depicts the passenger ship “Theodor Körner”, a well-known DDSG vessel serving on the Danube. Rendered in detailed maroon linework, the design highlights the ship’s multi-deck structure and the DDSG logo. The stamp celebrates Austria’s rich river transport heritage and the company’s role in connecting Danube ports over generations. A must-have for collectors of maritime and Austrian transport themes.