Nycolaus de Lyra, Postilla super Isaiam et Dodecapropheton (Os-Hab)
A late fourteenth-century manuscript commentary by Nicholas of Lyra on Isaiah and the Minor Prophets, dated 1393 and held by a Swiss library. The page is dense gothic text in brown ink, with one diagram below showing a circular astronomical or instrument drawing with a long pointed arm and small labelled circles. A designer might take the spare layout of a text block over a precise geometric figure as a model for annotated technical pages.
