Paper; ff. II, 501; mm. 266_200. Title on spine: 'Meteora d'Arist. del Venturelli'. Beautiful dedicatory copy; follows the layout of contemporary printed books.
Paper;ff. [3], pp. 171, f. 1; mm. 230_165. Old binding in parchment; title on spine: 'Posteriori d'Arist. tradotti da Fulv. Viani de Malatesti'. Beautiful dedicatory copy, follows the layout of contemporary printed editions.
Parchment; ff. I, 37, I; mm. 165_230. Layout: mm. 102_155. Lines: 24 per page. Beautiful dedicatory copy. Initials of paragraphs and names of dedicatees in red. Binding decorated with Medici coat of arms.
Paper; ff. [2], 201, [2]; mm. 200_265; original binding in parchment. Beautiful copy written in an elegant cursive hand (early 17th c.). The Institutione at ff. 3r-38v; the Compendio at ff. 39r-196v.
Paper; ff. [1], 191 [171-191 blank]; old binding in vellum; possibly autograph by Francesco Piccolomini (at any rate different from all the other extant copies which are clearly calligraphic ones realised by scribes).