- Mount Athos, Great Lavra Monastery, ms. Δ73: page range 1r–422v
- Acquired: purchased by library
- Film: 35mm Black-and-white Negative
NotesPost-it note: "Cod. Athos Lavra 449 (includes Photius, Amphilochia. Unknown donor (courtesy of MM 5/31/11".
Acquisition list: "November 23, 1951. Microfilms from Mt. Athos. Purchase. Photius: Strips numbered (19)-(31) and (33) Lavra 449 (complete)".