Aristotelis Stagyritae Libri de Coelo IIII
Aristotle's four books On the Heavens, printed in Augsburg in 1519 in a Latin translation by Argyropoulos with commentary by Johann Eck, and aimed at university students of natural philosophy. The pictures are simple diagrams of circles, crossing axes, and nested spheres labelled in Latin, drawn in plain black line on cream paper, offering a designer clear geometric motifs such as the armillary-style ring, the orbit with eccentric circles, and the bisecting cross.
