- Florence, Biblioteca Medicea Laurenziana, ms. Plut. 71, 3: page range 1r–38r
- Acquired: donated by the estate of L.G. Westerink
- Film: 35mm Black-and-white Positive
NotesProf. Westerink's note: "Biblioteca medicea laurenziana. Manuscript. Laur. 71.3. Porphyry. Isagoge (c. schol. Psell.): ff. 2-39. Pos."
Photographed at Laboratorio Microfilm Dr. G. B. Pineider, Florence.
At the beginning: Informational label of the Biblioteca Medicea Laurenziana, dated on June 1964.