The 9th International Irrigation Congress 1975
Now showing: USSR - Postage stamps - 1975 - The 9th International Irrigation Congress - 1 stamps.
1975
The 9th International Irrigation Congress
23. May WM: None Sheetsize: 50 Design: Yu. Ryakhovsky Perforation: 11½
![[The 9th International Irrigation Congress, type EWP]](https://www.stampworld.com/media/catalogue/USSR/Postage-stamps/EWP-s.jpg)
