The 20th Anniversary of Organization of Petroleum Exporting Countries or OPEC 1980
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1980
The 20th Anniversary of Organization of Petroleum Exporting Countries or OPEC
15. september WM: Inga Gravyr: Format International Security Printers Ltd. Perforering: 14¾
![[The 20th Anniversary of Organization of Petroleum Exporting Countries or OPEC, Typ RP]](https://www.stampworld.com/media/catalogue/Libya/Postage-stamps/RP-s.jpg)
![[The 20th Anniversary of Organization of Petroleum Exporting Countries or OPEC, Typ RQ]](https://www.stampworld.com/media/catalogue/Libya/Postage-stamps/RQ-s.jpg)
