Hammond's air age map of the world : a polar projection. Copyright by C.S. Hammond & Co., N.Y. Printed in U.S.A. Photographs and accompanying data, courtesy Aero-Digest, N.Y.C. (insets) Eastern Hemispher. (with) Western Hemisphere.
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Hammond's air age map of the world : a polar projection. Copyright by C.S. Hammond & Co., N.Y. Printed in U.S.A. Photographs and accompanying data, courtesy Aero-Digest, N.Y.C. (insets) Eastern Hemispher. (with) Western Hemisphere.
Full Title
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