The 4th African Unity Organization (O.U.A.) Conference, Kinshasa - Issues of 1964 Overprinted "4e Sommet OUA KINSHASA du 11 au 14 - 9 - 67" and Surcharged Value 1967
Most látható: Kongó Demokratikus Köztársaság - Postaköltség bélyegek - 1967 - The 4th African Unity Organization (O.U.A.) Conference, Kinshasa - Issues of 1964 Overprinted "4e Sommet OUA KINSHASA du 11 au 14 - 9 - 67" and Surcharged Value - 1 bélyegek.
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