Smithsonian Report. 1936. — Baisley 



PLATE 12 



Photograph U. S. Army Air Corps. 



1. An Oblique Photograph of Washington, D. c. 



Photogrupli U. S. .\riii.v .\ir ( .m |.,, 



2. A Single Vertical Photograph of a Part of Washington. D. C. 

 Taken August 23, 1935, with an SJ-a-inch focal length lens in a K-3B camera from an altitude of 18,000 feet. 



