| 27 October-10 November 1969: 4th ECAFE Symposium Dev Petroleum Resources APM2870
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| 27 October-10 November 1969: 4th ECAFE Symposium on the Development of Petroleum Resources, Canberra APM2870 on plain addressed cover affixed with blue and yellow 5c Sugar stamp cancelled "27 OCT 1969" FDU
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Item #: INV-127200
Condition Co
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