This Swiss commemorative stamp was issued in 1956 to mark the 25th anniversary of Swissair (1931–1956), the national airline of Switzerland. Designed by Pierre Gauchat and printed by Courvoisier S.A., the stamp showcases a striking minimalist design featuring silhouettes of three aircraft symbolizing the airline’s evolution over a quarter century. The planes are shown in flight against a deep blue sky with soft cloud accents, while a red aircraft symbol within a white circle evokes the Swiss cross and national colors.

The denomination “40 Helvetia” denotes its face value in Swiss centimes, and the design elegantly balances modernism with national identity, reflecting the precision and innovation associated with Swiss aviation. This issue is part of a series celebrating milestones in Swiss progress and remains highly sought after by collectors of aviation and Swiss commemoratives.