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| Flight Number | H 11 b |
|---|---|
| Airship Number | LZ 129 Hindenburg |
| Flight Name | Test Flight 1936 |
| Departure Date | May 4, 1936 |
| Departure Location | Friedrichshafen, Germany |
| Arrival Date | May 4, 1936 |
| Arrival Location | Friedrichshafen, Germany |
| Dispatch Type | Friedrichshafen Onboard Cancel |
| Value | $ |
Notes
This envelope flew 7 hours, 32 minutes on an engine test flight before going by sea post to Brazil. Most likely, the onboard cancels on this envelope were applied at the post office in advance of the flight. 53 crew members and 38 passengers could post mail aboard and receive the cancel during the flight.