Herman Cudris Castaņeda

Stamps Category Science Herman Cudris Castaņeda

The Earth - 10th Anniversary of the Humboldt Planetarium
Venezuela
Friedrich Koenig (1774-1833) German Inventor - Printing Machine
Germany
Ed:Es 2760 - Dr. Ignacio Barraquer barraquer (1884-1965) Spanish Ophthalmologist
Spain
A Decade of Achievement-Lunar Rover and Astronauts- A Decade of Achievement-Lunar Rover and Astronauts.
United States
Funkausstellug 1969 Stuttgart- Electromagnetic Field-Stamp issued to publicize the exhibition
Germany
Ed:Es - Telephone Centennial - Alexander Graham Bell (1847-1922) Scientist and Inventor
Spain
1000 Years Harzer Bergbau- Harzer Mines-Sciences and Techniques - Anniversary - ZnS - PbS.
Germany
Apollo 8 (Dec.21-27,1968)-Moon surface and Earth- In The beginning Goog...
United States
Doctor: Luis Daniel Beauperthuy Desbonnes (1807-1871) - Centenary of his Death (18771-1971)
Venezuela
9th Venezuelan Engineering Congress-Maracaibo-College of Engineers of Venezuela-Emblems.
Venezuela