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Herman Cudris Castaņeda
Stamps Category Science Herman Cudris Castaņeda
SOL - 10th Anniversary of the Humboldt Planetarium
Venezuela
MARS - 10th Anniversary of the Humboldt Planetarium
Venezuela
PLANETOIDS - 10th Anniversary of the Humboldt Planetarium
Venezuela
VENUS - 10th Anniversary of the Humboldt Planetarium
Venezuela
URANO - 10th Anniversary of the Humboldt Planetarium
Venezuela
PLUTON - 10th Anniversary of the Humboldt Planetarium
Venezuela
MERCURY - 10th Anniversary of the Humboldt Planetarium
Venezuela
Friedrich Wilhelm Bessel (1784.1846) German Mathematician and Astronomer.
Germany
Fight against Cancer-Cancer Research Fund - Pierre and Aria Curie.
Panama