1. University of Pennsylvania, Ms. Codex 75 DS ID: DS1657 Title: Pupilla oculi Author: John Burgh Place: England and Wales Date: [between 1400 and 1425]
2. Ohio State University, Spec.Rare.MS.MR.Frag.340 DS ID: DS11759 Title: Pupilla oculi Author: John Burgh Place: England Date: ca. 1425