Michelangelo Buonarroti, Study for the Nude Youth over the Prophet Daniel (recto); Figure Studies for the Sistine Ceiling (verso), 1510–11, red chalk over black chalk or charcoal, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/119614

Albrecht Altdorfer, Salome with the Head of St. John the Baptist, c. 1517, pen and brown ink and brush and brown wash and white gouache; framing lines in pen and black ink, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/126219

Guercino, Venus and Cupid in a Chariot, 1615–17, Pen and brown ink and brush and brown wash over red chalk, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/107189

Fra Bartolommeo, Farmhouse on the Slope of a Hill, c. 1508, pen and brown ink, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/134951

Peter Paul Rubens, The Feast of Herod (recto); Tomyris with the Head of Cyrus (verso), c. 1637–38, pen and brown ink, with black and red chalk, touched with white gouache, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/131583

Pietro Perugino, Saint Sebastian, c. 1493, metalpoint, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/135407

Jacob Jordaens, The Conversion of Saul with Christ and the Cross, c. 1645–47, brush and brown wash, gouache and watercolor over black and red chalk, heightened with traces of white; framing lines in graphite, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/131791