Stamps year 1973 page 171

Stamps Year 1973

                                           
MARS - 10th Anniversary of the Humboldt Planetarium
                                  Herman Cudris Castañeda
                                
PLANETOIDS - 10th Anniversary of the Humboldt Planetarium
                                  Herman Cudris Castañeda
                                
VENUS - 10th Anniversary of the Humboldt Planetarium
                                  Herman Cudris Castañeda
                                
URANO - 10th Anniversary of the Humboldt Planetarium
                                  Herman Cudris Castañeda
                                
PLUTON - 10th Anniversary of the Humboldt Planetarium
                                  Herman Cudris Castañeda
                                
MERCURY - 10th Anniversary of the Humboldt Planetarium
                                  Herman Cudris Castañeda
                                
Christmas 1973 - Three Wise Men on Horses.
                                  Herman Cudris Castañeda
                                
Exploration of Venus
                                  Nelida Fernandez Besada
                                
Exploration of Venus -
                                  Nelida Fernandez Besada
                                
Exploration of Venus - Skylab
                                  Nelida Fernandez Besada
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9.052 stamps