Stamps Category Science

Viking Mission to Mars
Nelida Fernandez Besada
C.E.P.T.- European aerospace
Nelida Fernandez Besada
Energy Dam on the Negro River - Eastern Republic of Uruguay.
Herman Cudris Castañeda
Transport
Manuel Alonso Rodal
Chemist -
Herman Cudris Castañeda
High Voltage Energy Tower.-
Herman Cudris Castañeda
Characters
Manuel Alonso Rodal
ALBERT EINSTEIN-NOBEL
carlos ródenas ferré
Crusade against Cancer - Early diagnosis saves life - Microscope, and Stethoscope.
Herman Cudris Castañeda
The brothers: Wilbur and Orville Wright and their plane - First flight controlled and sustained by man.
Herman Cudris Castañeda