Stamps, World Conference on Technical Co-operation between Underdeveloped Countries issue

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Mexico

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1978, Apr 21 World Conference on Technical Co-operation between Underdeveloped Countries issue wmk. MEX & eagle p. 14.25
Colnect-2662-960-Postal-Stamp-I.jpgColnect-2662-961-Postal-Stamp-II.jpg
- 1.60p multi
- 4.30p multi

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