Sfera15th centurylatManuscript on paper of La Sfera, by either Gregorio Dati (1362-1435), or Leonardo Dati O.P. (1360-1425).In Latin.Script: copied by a single hand in Southern Gothica Semitextualis Libraria; the first majuscule of each strophe written between the double bounding lines. The four books open with a 3-line red plain initial with or without interior reserved shapes.Manuscript on paper of La Sfera, by either Gregorio Dati (1362-1435), or Leonardo Dati O.P. (1360-1425). A contemporary hand has numbered the Books in the following way: Book I (f. 1r): “Terzo”; Book II (f. 7r): “Quarto”; Book III (f. 13r): “Primo”; Book IV (f. 19r): “Secondo”.