Vienne (ONU)
Montre maintenant: Vienne (ONU) - Timbres-Poste (1979 - 2024) - 1 Timbres-poste.
1997
The 25th Anniversary of the UNESCO World Heritage Convention
19. novembre WM: Aucun Taille de la feuille: 20 Perforation: 13½
![[The 25th Anniversary of the UNESCO World Heritage Convention, type IA]](https://swmedia-4cd6.kxcdn.com/media/catalogue/UN-Vienna/Postage-stamps/IA-s.jpg)
![[The 25th Anniversary of the UNESCO World Heritage Convention, type IB]](https://swmedia-4cd6.kxcdn.com/media/catalogue/UN-Vienna/Postage-stamps/IB-s.jpg)
