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Lot 4840

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First Photo Showing Lateral Curvature of Earth

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Title: U.S. Army Air Corps Stratosphere Flight of 1935 in the Balloon "Explorer II"
Author: (The National Geographic Society)
Description: 278 pp. 6¾x10, original gray wraps. Illustrations from black and white photographs, large machine-folded black and white photographic print laid in. First Edition.The print is from a photograph taken from a balloon 72,395 feet above sea level and was the first to show the lateral curvature of the Earth.
Heading: zzkPlace Published: Washington
Publisher: National Geographic Society
Date Published: 1936

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This is a two day auction running Thursday 12/11 and Friday 12/12. Invoices will not be available before Monday 12/15.