The dead weight of the airship and the number of passengers that can be carried
A 1922 technical report from the NASA Technical Reports Server, a scanned engineering document with no named illustrator, presenting airship design calculations for dead weight and passenger capacity. The pictures are plain graph-paper charts with hand-drawn curved and straight plotted lines, labelled axes, and dense handwritten-style annotations, one of them rotated sideways on the page. A designer could take the grid layouts, fine line plots and sparse typographic labelling as a reference for technical diagram styling.
