Stamps of Ecuador, 7 Sep 1993
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postage
1993, Sep 7 University of Ecuador School of Medicine 300th issue unwmk p. 12
| - | 300s | multi |
1993, Sep 7 250th Anniversary of Maldonado and La Condamine's Amazon Expedition issue (no perf info)
| - | 1500s | multi | Charles de la Condamine |
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