Resistance of plates and pipes at high Reynolds numbers
A 1931 technical report from the NASA Technical Reports Server, a scientific publication on skin friction drag of plates and pipes at high Reynolds numbers. The only picture is a line chart plotting log friction coefficient against log Reynolds number, with a labelled limit of calculation marked near the right edge. A designer could borrow its plain engineering graph conventions: sparse axis labels, a dashed reference line, and a single annotated threshold for technical diagrams.
