Gabon : 20th Anniversary of ICAO


Issue date: 19/05/1967



Airlines and flight paths/runways; ICAO emblem. The name of the designer (DURRENS) is printed vertically on the right-side.

This stamp shows an error: "de l'" is missing in the French name of the Organization, which should be written Organisation de l’aviation civile internationale.


Background: ICAO provided instructions to the Contracting States to commemorate its 20th anniversary on 7 December 1964, corresponding to the anniversary of the signing of the Convention on International Civil Aviation, in Chicago. This country still calculated the 20th anniversary on the basis of the constitution of the new permanent International Civil Aviation Organization (ICAO) on 4 April 1947; this is considered as an error.