'The Clarke Plato': the oldest manuscript (discounting papyrus
fragments) for about half the dialogues of Plato, perhaps once the
first volume of a two-volume set. Commissioned by Arethas of Patrae
(bishop of Caesarea, 902-c. 939), who paid 21 gold coins for the
copying and the parchment, and added scholia in the margin in a
tiny uncial hand (with at least one other contemporary hand).