Argentina
Now showing: Argentina - Postage stamps (1858 - 2023) - 1 stamps.
1978
Technical Co-operation among Developing Countries Conference, Buenos Aires
2. September WM: None Design: H. Viola. Engraving: Casa de moneda. Perforation: 13½
![[Technical Co-operation among Developing Countries Conference, Buenos Aires, type AOK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Argentina/Postage-stamps/AOK-s.jpg)