1. University of Pennsylvania, Oversize LJS 25 Title: Metaphysics Author: Aristotle Place: Italy Date: [1275-1299?]
2. University of Kansas, MS C189 Title: Philosophy Author: Porphyry and Aristotle Place: Italy Date: [between 1301 and 1400]
3. University of Pennsylvania, Oversize Ms. Codex 760 Title: Nicomachean Ethics Author: Aristotle Place: Italy Date: [14--]
4. University of Pennsylvania, Ms. Codex 765 Title: Organon Author: Aristotle Place: Italy Date: [between 1450 and 1499]
5. Free Library of Philadelphia, Lewis E 15 Title: Organon Author: Aristotle Place: Italy Date: 1285-1299
6. Free Library of Philadelphia, Lewis E 53 Title: Miscellany Author: John de Breton, Adam of Bockenfield, Aristotle, and John de Seccheville Place: Italy Date: 1250-1280