- Mount Athos, Great Lavra Monastery, ms. Δ73: page range 1r–139r
- Acquired: donated by the estate of L.G. Westerink
- Film: 35mm Black-and-white Negative
NotesProf. Westerink's note: "Mone Megistes Lauras (Athos, Greece) Manuscript. Δ73. ff. 1-139 recto. Photius. Amphilochia (1)".
[The second part is on WEST.MTA.4.8; the third part is on WEST.MTA.4.16].