The 30th Anniversary of the Organization of Petroleum Exporting Countries 1990
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1990
The 30th Anniversary of the Organization of Petroleum Exporting Countries
14. september WM: 5 Perforering: 14
![[The 30th Anniversary of the Organization of Petroleum Exporting Countries, Typ SB]](https://www.stampworld.com/media/catalogue/Nigeria/Postage-stamps/SB-s.jpg)
![[The 30th Anniversary of the Organization of Petroleum Exporting Countries, Typ SC]](https://www.stampworld.com/media/catalogue/Nigeria/Postage-stamps/SC-s.jpg)
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