« L'astrologie dans sa pureté ».
A French astrology treatise from 1601, catalogued among the Corpus Astronomie and Réserve manuscripts, and the record gives no author, place or intended reader. The pictures are hand-drawn diagrams in ink on aged paper: stacked sun, eclipse and shadow circles with rays and faces, and a lettered geometric circle with parallel chords. A designer could take the rayed sun motif and the simple linework of the geometric diagram as graphic models.
