Marsyas Tied to a Tree1550 · Pen and brown ink on ivory laid paper, laid down on ivory wove paper, tipped onto gray card28.4 × 20.5 cm (11 3/16 × 8 1/8 in.)Art Institute of Chicago
Two Standing Male Nudes1548 · Pen and brown ink, over black chalk, on ivory laid paper, laid down on ivory laid paper40.9 × 28.7 cm (16 1/8 × 11 5/16 in.)Art Institute of Chicago
Portrait of Baccio Bandinelli with Lion1548 · engravingPlatemark: 41.5 x 30.9 cm (16 5/16 x 12 3/16 in.); Sheet: 41.7 x 31.1 cm (16 7/16 x 12 1/4 in.)Cleveland Museum of Art
First Family Before a Shelter1547 · Pen and brown ink on buff laid paper, laid down on cream wove card37.9 × 27.8 cm (14 15/16 × 11 in.)Art Institute of Chicago
Two Studies of the Head of a Youth1545 · Pen and brown ink on tan paper, laid down on cream laid paper23.8 × 25.5 cm (9 3/8 × 10 1/16 in.)Art Institute of Chicago
WattsOSASA Seated Man Declaiming from a Book1540 · Pen and brown ink12 3/16 x 7 5/8 in. (31 x 19.4 cm)The Metropolitan Museum of Art
WattsOSCICosimo I de' Medici (1519–1574), Duke of Florence1539 · MarbleOverall (confirmed): H. 31 1/2 x W. 30 7/8 x D. 12 in. (80 x 78.4 x 30.5 cm);The Metropolitan Museum of Art