Herman Cudris Castañeda

Stamps Category Science Herman Cudris Castañeda

High Voltage Energy Tower.-
Romania
Crusade against Cancer - Early diagnosis saves life - Microscope, and Stethoscope.
United States
The brothers: Wilbur and Orville Wright and their plane - First flight controlled and sustained by man.
United States
Ed: 1790 - VIIth Latin and 1st European Congress of Radiology - Barcelona 1967
Spain
Apollo 11 Flight- Astronauts: Neil A. Armstrong, Edwin E. Edwin (Jr.) Michael Collins - Lunar Landscape
Venezuela
Apollo Soyuz 2 - Space Travel - Emblem
Hungary
Helios Mission Encapsulation - Viking Space Mission
Grenada
Helios Assembly Mission
Grenada
Carl Von Linné (Linnaeus) (1707-1778) 200 Years Systema Naturae
Germany
Computer Technology - Computer Technology
United States