Identified! [Testing airplane lenses used in map making at the U.S. Bureau of Standards, Washington, D.C.] (LOC)

Uploaded by	The Library of Congress
License	No known copyright restrictions
Comments	18
Favorites	8
Views	19,159
Date taken	1934
Date uploaded	2015-10-02
Tags	libraryofcongress, dc:identifier=httphdllocgovlocpnphec37556, xmlns:dc=httppurlorgdcelements11, lenstesting, bureauofstandards, aerialmapping, determining, focallength, distortion, mysterysolved, frankacase
Visibility	public