Plastic semicircular ambro protractor. "Dietzgen", printed on front. Red plastic case removed form object; not desired for display in Pioneers of Flight. See: A20030074002.
Created by
Eric Long
Date Created
06/10/2010
Source
Smithsonian National Air and Space Museum, NASM Original Photography, NASM Acc. 2012-0026.
Keywords
Aviation; Exploration; Instruments; People
Rights and Restrictions
Usage conditions apply For more information, visit the Smithsonian’s Terms of Use.