Seated Sibyl and Attendant Genius (recto); Study of the Head of a Horse in Profile (verso)

Diana and Apollo Slaughtering the Children of Niobe

1545 · red chalk, squared with black chalk and indented for transfer, on two joined sheets of laid paper

Op een boog leunende naakte vrouw en twee kinderen

1535 · chalk, paper

Plan of Ancient Rome, from "Speculum Romanae Magnificentiae"

1530 · Engraving

Sketches after the Antique: Bacchic Revels; Neptune in His Chariot

1530 · Black chalk, with pen and brown ink, on ivory laid paper, laid down on cream laid paper

Theater of Marcellus, from "Speculum Romanae Magnificentiae"

1530 · Engraving

Caryatid Facing Left

1525 · Pen and brown ink, brush and brown wash, over traces of black chalk