Rocky Promontory with Ruins and Cascades (recto); Sketch of Cliff with Buildings (verso)
Giles Edme Petit · n.d.

Brush and gray wash over black chalk (recto) and black chalk (verso) on ivory laid paper
Giles Edme Petit · n.d.

Brush and gray wash over black chalk (recto) and black chalk (verso) on ivory laid paper