The 4th Agricultural Co-operative Congress, Ulan Bator - National Museum Stamp of 1969 Overprinted 1973
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1973
The 4th Agricultural Co-operative Congress, Ulan Bator - National Museum Stamp of 1969 Overprinted
11. Juni Wz: Keine Zähnung: 12
![[The 4th Agricultural Co-operative Congress, Ulan Bator - National Museum Stamp of 1969 Overprinted, Typ SX1]](https://www.stampworld.com/media/catalogue/Mongolia/Postage-stamps/SX1-s.jpg)
