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- Subject is exactly "Post, Hans Joachim"
[First flight air mail cover addressed to Dr. Hans Joachim Post, Hamburg, Germany, from Dr. Fred Post, Peekskill, New York, October 28, 1928]
![[First flight air mail cover addressed to Dr. Hans Joachim Post, Hamburg, Germany, from Dr. Fred Post, Peekskill, New York, October 28, 1928]](https://digitalcollections.museumofflight.org/files/square_thumbnails/dde7db0e6875568666f927fdb2e6eeb8.jpg "[First flight air mail cover addressed to Dr. Hans Joachim Post, Hamburg, Germany, from Dr. Fred Post, Peekskill, New York, October 28, 1928]")
First flight air mail cover addressed to Dr. Hans Joachim Post, Hamburg, Germany, from Dr. Fred Post, Peekskill, New York, October 28, 1928. Stamped: "First Flight Air Mail via Graf Zeppelin - United States – Germany. Oct. 28, 1928. Via Air Mail."