Zobrazujú sa: Portugalsko - Poštové známky (1990 - 1999) - 1 známky.
1998
The 100th Anniversary of the Discovery of Radium by Marie Curie
1. jún WM: nikto Dizajn: Carlos Delfim Leitão. Rytina: Imprensa Nacional Casa da Moeda. Perforácia: 11¾ x 12
![[The 100th Anniversary of the Discovery of Radium by Marie Curie, typ BFF]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Portugal/Postage-stamps/BFF-s.jpg)