Ms. written and illuminated in Florence, Italy, ca. 1345-1355; the scribe of the ain text is Andrea Lancia.
Instructions to the illuminator or rubricator are found beside some of the illustrations.
Decoration: 2 full-page miniatures, 125 marginal illustrations, 1 15th-century illuminated initial.
The illumiantion of M.676 is unfinished. Fol. 3r was not completed and two sketches (on fols. 49r and 90r) were not completed.