There is no text division between Books 8 and 9. Particulam litterarum tuarum legit hodie michi. . . The final two leaves of this quire have been cut out. Pricking in top, bottom and right margins. Written by a single scribe in a humanistic bookhand, above the top line.
Red headings introduce each book.
Marginal notations in two fifteenth century hands throughout. Written in Florence in the mid fifteenth century. Early provenance unknown. His teacher Antonio di Mario wrote the dedication copies of both the works of Bruni dedicated to Cosimo de' Medici. It may well be. . . that Pietro's acquaintance with Bruni, documented from 1434, goes back as far as the Council of Constance.