Jetzt zeigen: Portugal - Briefmarken (1970 - 1979) - 4 Briefmarken.
1970
Opening of the Oil Refinery in Porto
5. Juni Wz: Keine Design: Antonio Lino Gravieren: Casa da Moeda Zähnung: 13½
![[Opening of the Oil Refinery in Porto, Typ NJ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Portugal/Postage-stamps/NJ-s.jpg)
![[Opening of the Oil Refinery in Porto, Typ NK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Portugal/Postage-stamps/NK-s.jpg)
![[Opening of the Oil Refinery in Porto, Typ NJ1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Portugal/Postage-stamps/NJ1-s.jpg)
![[Opening of the Oil Refinery in Porto, Typ NK1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Portugal/Postage-stamps/NK1-s.jpg)
