STAMP ISSUES RELATED TO ICAO (1978-1983)

 

Sao Tome and Principe : History of aviation and 35th Anniversary of ICAO

 

Issue date: 21/12/1979

 

 

Wright Brothers and double-decker Flyer I (1903) ‑ ICAO emblem.

 

Vought Sikorsky VS300 (1939) ‑ ICAO emblem.

 

Spirit of St. Louis (1927) registered in the experimental category under number N-X-211 in the USA ‑ ICAO emblem.

 

Dornier Do‑X (1929) registered D-1929 in Germany ‑ ICAO emblem.

 

Santa Cruz Fairey-17 111D ‑ ICAO emblem.

 

United States NASA Space Shuttle over earth. Without ICAO logo.

Background: For an unknown reason, the last stamp of this set (value 17db) shows the space shuttle, without ICAO logo.