Avtolyci De vario ortv et occasv astrorvm inerrantivm : libri dvo, nvnc primvm de Graeca lingua in Latinam conuersi : scholiis antiquis & figuris illustrati, de Vaticana Bibliotheca deprompti
Autolycus's Greek treatise on the risings and settings of fixed stars, first rendered into Latin and published in Rome in 1588 by Vincenzo Accolti's press, edited by Giuseppe Auria from Vatican manuscripts for astronomers and scholars. The pictures are plain geometric diagrams: a circle with lettered points, chords and arcs drawn in heavy black line on a sphere, with small tick marks on the arcs. A designer could take from them a precise, schematic vocabulary of labelled circles and intersecting arcs suited to technical line work.
