Postage Stamp : 2025 World Exposition in Japan (Osaka-Kansai Expo) – Large Roof Ring
Date of Issue : April 11, 2025
Description : This stamp features the Grand Ring, designed by architect Sou Fujimoto. It is recognized as one of the world’s largest wooden structures, with a circumference of approximately 2 km. The design uses traditional Japanese timber construction methods (specifically the kakezukuri technique seen at Kiyomizu-dera Temple) combined with modern technology. The roof serves as the main circulation path for visitors, offering views of the sea and the Expo pavilions.
Postage Stamp : 2025 World Exposition in Japan (Osaka-Kansai Expo) – Myaku-Myaku Riding a Houseboat
Date of Issue : April 11, 2025
Description : This oval-shaped stamp features the official Expo mascot, Myaku-Myaku. Myaku-Myaku is a “mysterious creature” whose body is made of cells (red) and water (blue), representing the “pulsing rhythm of life.” In this specific illustration, the mascot is shown on a traditional Japanese boat decorated with red lanterns, celebrating the rich culture of Osaka, known historically as the “City of Water.”
Postmark Date : The date on the postmarks is 8. 2. 12, which refers to February 12, 2026 (Reiwa 8).
Postmark Location : Hayama Post Office (葉山) in Kanagawa Prefecture