The air
letter displayed below was carried by the Lufthansa first flight LH657 in
1974. DC10 jet airliner made its first
flight starting at Tokyo, then Anchorage – Hamburg – finally to Frankfurt. A few copies of Burma air letter sheets were
carried onboard and pictorial cachet was applied. All copies in my hand were philatelic and cancelled at
Yangon GPO on 18 Mar 1974.