Portugal
Now showing: Portugal - Postage stamps (1853 - 2024) - 1 stamps.
1979
Noise Protection
14. March WM: None Design: Duarte Nuno Simões. Engraving: Imprensa Nacional Casa da Moeda. Perforation: 13½
![[Noise Protection, type ZH]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Portugal/Postage-stamps/ZH-s.jpg)
![[Noise Protection, type ZI]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Portugal/Postage-stamps/ZI-s.jpg)
![[Noise Protection, type ZJ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Portugal/Postage-stamps/ZJ-s.jpg)
