The 100th Anniversary of the Birth of Guglielmo Marconi 1974
Now showing: Portugal - Postage stamps - 1974 - The 100th Anniversary of the Birth of Guglielmo Marconi - 3 stamps.
1974
The 100th Anniversary of the Birth of Guglielmo Marconi
4. September WM: None Design: Newton Cavalcanti Engraving: I.N.C.M. Perforation: 12
![[The 100th Anniversary of the Birth of Guglielmo Marconi, type RY]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/RY-s.jpg)
![[The 100th Anniversary of the Birth of Guglielmo Marconi, type RZ]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/RZ-s.jpg)
![[The 100th Anniversary of the Birth of Guglielmo Marconi, type SA]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/SA-s.jpg)
