- Milan, Biblioteca Ambrosiana, ms. A 27 inf.: page range 1r–83v
- Acquired: donated by the estate of L.G. Westerink
- Film: 35mm Black-and-white Negative
Prof. Westerink's note:
"Biblioteca ambrosiana. Manuscript. A 27 inf.
ff. 83. (Steph), In Progn."
Note on the side: "Neg.* printed E"
The film is an exact copy of MIL.1.2.