The Muses Euterpe, Polyhymnia, Calliope, Clio, and Terpsichore (recto); Sketch of a Sleeping Child (verso)Andrea Appiani · 1811

Black chalk (recto); black chalk (verso); squared in red chalkThe Metropolitan Museum of Art · CC0 1.0Lindy Arts

The Muses Euterpe, Polyhymnia, Calliope, Clio, and Terpsichore (recto); Sketch of a Sleeping Child (verso)

Black chalk (recto); black chalk (verso); squared in red chalk