Another handsome KLM first-day flight cover, celebrating what appears to be the extension of the Amsterdam-Conakry service to Monrovia (Robertsfield).
Vintage Airline Timetables, an Archive of Airline Route Maps, Airline Print Ads, Airline Schedules, New Airline Service Announcements, Airport Departure Boards, and First Flight Covers of New Airline Flights, and a leading source of original documentation of the History of Commercial Airline Service.
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