- Florence, Biblioteca Medicea Laurenziana, ms. Plut. 87,16: page range 316v–353r
- Acquired: donated by the estate of L.G. Westerink
- Film: 35mm Black-and-white Positive
Note on box:
Florence: Laur. 87.16
Psellus, De Motu Temporis
A sticker with the ms. number obscures a large portion of ff. 315v-316r.