Summary Technical Report of the Applied Psychology Panel, NDRC. Volume 1. Human Factors in Military Efficiency - Aptitude and Classification
A 1946 United States wartime government report from the National Defense Research Committee's Applied Psychology Panel, prepared for military authorities on selecting and classifying personnel by aptitude. The pictures are simple line drawings of mechanical problems: a rolling cylinder on a curved track, a pipe-and-radiator layout, a pulley lift with a rope and two labelled points, and a hand-cranked winch with labelled handles, each marked A and B for comparison. A designer could take the clean, labelled diagram style and the paired A/B comparison format.
