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

Albrecht Dürer, Melencolia I, 1514, engraving, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/108501