Now showing: USSR - Postage stamps (1923 - 1991) - 1 stamps.
23. August WM: None Sheetsize: 20 Perforation: 11½
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![[International Philatelic Exhibition, type BYH]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/BYH-s.jpg)
