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Cross-section drawing from engineers' blueprints of the Douglas DC-4
Cross-section drawing of a Douglas DC-4 including passengers and flight staff.
9 x 36.3 cm
black and white
- Douglas Aircraft Company--Products--1930-1940
- Douglas DC-4 (Transport plane)
- Transport planes--American--1930-1940
- still image
- These materials are either in the public domain, according to U.S. copyright law, or permission has been obtained from rights owners. The digital version and supplementary materials are available for all educational uses worldwide.
- The Janet A. Ginsburg Chicago Tribune Image Collection
- Chicago Sunday Tribune (October 3, 1937), p. 8