Issued by the Bailiwick of Guernsey in 1973, this commemorative set of five stamps celebrates the 50th anniversary of civil aviation in the islands (1923–1973). Each stamp features a historic aircraft that served the Channel Islands, illustrated with fine detail and printed by Courvoisier S.A.

• 2½p – Supermarine Sea Eagle (1923), one of the earliest seaplanes used for passenger service.

• 3p – Westland Wessex (1924), a pioneering landplane linking Guernsey with the mainland.

• 5p – De Havilland Rapide, a classic biplane widely used for island routes.

• 7½p – Douglas Dakota, the wartime workhorse later adapted for civilian flights.

• 9p – Vickers Viscount, a modern turboprop symbolizing postwar progress.

The set highlights Guernsey’s vital role in Channel Islands aviation and the evolution of aircraft over five decades. A must-have issue for both aviation and thematic collectors.