chemical engineering school 25th issue of Mexico
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Short desc: chemical engineering school 25th
Issuer: Mexico Date: 12/7/1973 Sort position: 6 Occasion: chemical engineering school founding Number/Year: 25 Consists of 1 stamp: (See stamps as list) 40c d=stylized hydrocarbon molecule All are wmk=MEX & eagle perf=14 Record of changes |
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