Lo specchio vstorio
Lo specchio vstorio is a 1650 mathematical treatise by Bonaventura Cavalieri, printed in Bologna by Gio. Battista Ferroni, on burning-mirrors and conic sections. The pages are numbered engraved diagrams of cones, sections and curves labelled with letters and captioned Figura. For a designer, they offer clean geometric linework, precise labelled construction drawings, and a restrained black-and-white diagram vocabulary suited to technical graphics.
