West Roxbury, MA: World War I Aero Publishers, ,
First Edition. octavo, wrappers. 24pp. World War I Aero Publishers, Item #11889
Volume 1, No. 3 in the World War I Aero Publishers aviation series. "When the rigid airship ZR-1 was christened the U.S.S. Shenandoah on 10 October 1 923, it became the first aircraft to serve as a commissioned vessel in the United States Navy. Five weeks earlier, on its maiden flight, the ZR-1 became the world's first rigid airship to fly with helium, rather than the more conventional, and more inflammable, hydrogen. It was also the first rigid airship to be built in the United States." Illustrated with photographs and line drawings. Very fine copy.
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