Institutiones Iustiniani, cum Accursii glossa ordinaria (fine deficiente)
This is a medieval manuscript of Justinian's Institutes with the Glossa ordinaria of Accursius, a legal textbook copied by a scribe for students of Roman law, from a Swiss library collection. The first picture shows a diagram of a rotating hourglass-like figure with radiating lines beside handwritten marginal notes in brown ink on parchment, and the second shows a stamped metal ornament with a central boss and scrolled corners, giving designers a sense of medieval diagram layout and decorative geometric metalwork.

