Congress of International Union of Prehistoric and Protohistoric Sciences 1996
Now showing: Tonga - Postage stamps - 1996 - Congress of International Union of Prehistoric and Protohistoric Sciences - 2 stamps.
Now showing: Tonga - Postage stamps - 1996 - Congress of International Union of Prehistoric and Protohistoric Sciences - 2 stamps.
![[Congress of International Union of Prehistoric and Protohistoric Sciences, type BAA]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Tonga/Postage-stamps/BAA-s.jpg)
