Sierra Leone : 40th Anniversary of ICAO


Issue date: 28/02/1985



Edward Rickenbacker, Spad XIII (1918) and German biplane trailing smoke. ICAO’s 40th anniversary and UN emblems.


Samuel Pierpont Langley's "Aerodrome A" (1903). ICAO’s 40th anniversary and UN emblems.

This stamp is wrongly inscribed "Aerodrome No. 5". More background information on this stamp can be found by clicking on the following link: Philatelic Laxity: Langley's Aerodromes.


Orville and Wilbur Wright and Wright Flyer I (1903). ICAO’s 40th anniversary and UN emblems.


Charles Lindbergh and Ryan NYP Special "Spirit of St. Louis" (1927). ICAO’s 40th anniversary and UN emblems.

Upper-right pairs.





Gutter Pairs.



Lower-right corners.




Miniature sheet: Boeing 707‑384C from Sierra Leone Airlines, over Freetown.


Imperforate proofs in issued colors, mounted together on card. Pre-production proof series; 4 to 6 exist.


Westminster Collection’s “Aviation Heritage” series, mounted with the four stamps of this issue.


The following First Day Cover (FDC) used the same basic layout as the FDC of Turks and Caicos Islands (issued on 28/02/1985, see at: Turks and Caicos Islands - 1985 - 40th Anniversary of ICAO).


Painting by Basil Smith, based on the first stamp of this issue (Spad XIII). In the ICAO collection, another Smith’s painting can be found at the following link: Botswana – 1984 - 40th Anniversary of ICAO. Designer and Painter, Basil Smith was born in 1925 in Hove, Sussex, England.


Background: The four stamps of this issue pay tribute to aviation pioneers and are one of a series issued to celebrate Aviation Heritage.