STAMP ISSUES RELATED TO ICAO (1978-1983)

 

Yemen : 30th Anniversary of ICAO

 

Issue date: 15/11/1979

 

 

Stylized view of Sana'a and ICAO 30th anniversary emblem.

 

Stylized view of Sana'a and ICAO 30th anniversary emblem.

 

Stylized view of Sana'a and ICAO 30th anniversary emblem.

 

The complete set (stamps and souvenir sheet) was originally designed with the following text and error: 30th ANNIVERSARY of NATIONAL CIVIL AVIATION ORGANISATION. This error was noticed at the time of printing, thus before the perforation of the sheets; only imperforated items are available with this error, as the items with the error were not issued.

The new issue was eventually released with the correct text: 30th ANNIVERSARY of INTERNATIONAL CIVIL AVIATION ORGANISATION.

 

 

Stylized view of Sana'a and ICAO 30th anniversary emblem. Unissued.

 

Stylized view of Sana'a and ICAO 30th anniversary emblem. Unissued.

 

Stylized view of Sana'a and ICAO 30th anniversary emblem. Unissued.

Background: Although ICAOís 30th anniversary was celebrated on 4 April 1977, Yemen released this issue only in 1979. However, the stamps and souvenir sheet indicate vertically on their left-side: 23 March 1977. The only explanation in the date difference could come from the error detected at the time of perforation as mentioned here-above and the delay required to issue the correct set.

Note that the Organizationís name is printed with s instead of z. The correct name is: International Civil Aviation Organization.