1982
Elveţia
Prezentat acum: Elveţia - WIPO (1982 - 1985) - 1 timbre.
1985
Activities of World Intellectual Property Organization - Inscription "ORGANISATION MONDIALE DE LA PROPRIÉTE INTELLECTUELLE"
10. Septembrie WM: Niciunul Design: Roland Hirter. Perforare: 11¾
![[Activities of World Intellectual Property Organization - Inscription "ORGANISATION MONDIALE DE LA PROPRIÉTE INTELLECTUELLE", Tip E]](https://www.stampworld.com/media/catalogue/Switzerland/WIPO/E-s.jpg)