Smithsonian Report, 1936. — Baisley 



Plate 6 



Photo-raph U. S. Army Air Corps. 



1. The T-3A Camera. Suitable for Mapping Purposes Only and Manually 

 Operated, it Has Five lenses and Takes Five Pictures simultaneously. 



I'hotograph U. S. Army Air Corps. 



2. A Transforming Printer. 



