The 1st Portuguese-Spanish-American Congress for Economic Geology 1971
Đang hiển thị: Bồ Đào Nha - Tem bưu chính - 1971 - The 1st Portuguese-Spanish-American Congress for Economic Geology - 4 tem.
1971
The 1st Portuguese-Spanish-American Congress for Economic Geology
24. Tháng 9 quản lý chất thải: Không Thiết kế: Serviços Artísticos dos CTT chạm Khắc: Casa da Moeda sự khoan: 12
![[The 1st Portuguese-Spanish-American Congress for Economic Geology, loại OR]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/OR-s.jpg)
![[The 1st Portuguese-Spanish-American Congress for Economic Geology, loại OS]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/OS-s.jpg)
![[The 1st Portuguese-Spanish-American Congress for Economic Geology, loại OT]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/OT-s.jpg)
![[The 1st Portuguese-Spanish-American Congress for Economic Geology, loại OU]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/OU-s.jpg)
