USSR
Now showing: USSR - Postage stamps (1923 - 1991) - 1 stamps.
1988
International Week of Letter
25. srpen WM: Žádný Sheetsize: 50 Design: A. Shmidshtein Perforation: 11½
![[International Week of Letter, type HCK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/HCK-s.jpg)