IUPAC - Macromolecular Symposium,Prague 1965
Now showing: Czechoslovakia - Postage stamps - 1965 - IUPAC - Macromolecular Symposium,Prague - 1 stamps.
1965
IUPAC - Macromolecular Symposium,Prague
20. August WM: None Design: J. Fišer Engraving: J. Herčík Perforation: 11½
![[IUPAC - Macromolecular Symposium,Prague, type ALX]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-stamps/ALX-s.jpg)