Environmental and Developing Conference of the United Nations 1992
Now showing: Portugal - Postage stamps - 1992 - Environmental and Developing Conference of the United Nations - 2 stamps.
1992
Environmental and Developing Conference of the United Nations
12. June WM: None Design: José Projecto Engraving: INCM Perforation: 12 x 11¾
![[Environmental and Developing Conference of the United Nations, type ASL]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/ASL-s.jpg)
![[Environmental and Developing Conference of the United Nations, type ASM]](https://www.stampworld.com/media/catalogue/Portugal/Postage-stamps/ASM-s.jpg)
