International Year of the Calm Sun 1964
Now showing: Portugal - Postage stamps - 1964 - International Year of the Calm Sun - 2 stamps.
1964
International Year of the Calm Sun
12. October WM: None Design: Sebastião Rodrigues. Engraving: Casa da Moeda de Portugal. Perforation: 13½
![[International Year of the Calm Sun, type KR]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/KR-s.jpg)
![[International Year of the Calm Sun, type KR1]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/KR1-s.jpg)
