Lot 81769 – 1930 (May 13) USA combination Zeppelin cover

Zeppelin Mail: 1930 (May 15) Registered Behrens advertising envelope flown from Lakehurst to Friedrichshafen with local franking front and back, via Cuba to New York where well centred $1.30 zeppelin added tied New York Grand Central duplex, reverse with similar cancel and Friedrichshafen cds 6.6.30, fine and very rare. Ex L Kofler, lot 2921