Now showing: UN Vienna - Postage stamps - 1992 - Science And Technic - 2 stamps.
2. October WM: None Perforation: 13¾
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![[Science And Technic, type EB]](https://www.stampworld.com/media/catalogue/UN-Vienna/Postage-stamps/EB-s.jpg)
![[Science And Technic, type EC]](https://www.stampworld.com/media/catalogue/UN-Vienna/Postage-stamps/EC-s.jpg)
