Copy after Giambologna's Neptune Fountain in Piazza San Petronio, Bolognaca. 1600Winged Hippocamp supporting a Vase (recto); Figure Studies and Architectural Design (verso)16th–early 17th centuryStudy of Anatomy (A Youth Drawing an Ecorché of a Standing Man)1550–1600Design for a Cartouche (recto); Design for a Cartouche (verso)1580–1620Madonna and Child and Worshippers1500–1640Design for a Church with a Central Octagonal Plan1570–1620Augustus and the Sybil ?n.d.Madonna and Child with St. Elizabeth and St. John16th–early 17th centuryMadonna and Child16th–early 17th centuryDesign for a Frieze with a Grotesque Vase and Festoon with a Ram and Putto.1550–1610Design for a (Temporary?) Structure consisting of Two Angels carring the Medici Coat of Arms crowned by the Figure of Christ16th–early 17th century