Issued by Switzerland, this 10 centimes stamp features the iconic winged horse Pegasus, symbolizing the speed and unity of international mail under the Universal Postal Union (UPU). The inscription Union Postale Universelle highlights Switzerland’s historic role as host nation of the UPU headquarters in Bern. Designed in a clean engraved style, the flying Pegasus surrounded by stars represents global postal cooperation. This classic mid-20th-century Swiss definitive is admired for its symbolism, sharp typography, and elegant monochrome design. A desirable thematic piece for UPU, aviation symbolism, and international communications collections.