1936 (May 6-9), Airship "Hindenburg" 1st NAF cover, franked by three values, including two air post stamps, tied by Copenhagen "4.5.36" ds, Frankfurt connection and letter "d" red confirmation cachet, arrived to NYC on May 9, VF, Sieger #406C, Mi #12, €250

100.00

1936 (May 25-28), Airship "Hindenburg" 2nd SAF (5th SAF of Zeppelin and Hindenburg in 1936) registered postcard to Chile, franked by four stamps, including three air post values, tied by Copenhagen "23.5.36"ds, red letter "e" confirmation cachet, arrival marking on picture side, VF, Sieger #412, Mi #16, €450

150.00