- Moscow, State Historical Museum, ms. Sinod. gr. 405: page range 269r–270v
- Acquired: donated by the estate of L.G. Westerink
- Film: 35mm Black-and-white Negative
Prof. Westerink's note:
"Gosudarstvennyi istoricheskii muzei (Moscow, Russia). Manuscript. Gr. 416 Vlad.
Psellus. De Mente (OD?): ff. 269 recto-270 verso."
At the beginning (in Russian): "Sin. gr. 405."