Air France: Paris-Dakar-Abidjan, September 1960.

One of Air France's first duties for its shiny new B707s was on the crucial bridge to its colonial capitals: Dakar and Abidjan, which began in September 1960. A handsome broad-side elevation of the airborne quad jet is imprinted on this envelope in Air France blue, under the title "BOEINGINTERCONTINENTALAIR FRANCE" and "Première Liaison" underneath. Several cancellation stamps provide the same detail.