Hercules and Omphale with nymphs on a staircase leading to a fountain: Design for a compartment

Attributed to Giovanni Francesco Romanelli (Viterbo 1610-1662) Hercules and Omphale with nymphs on a staircase leading to a fountain: Design for a compartment black chalk, pen and brown ink, brown wash, heightened with white, squared in black chalk 14 5/8 x 15 5/8 in. (370 x 396 mm.)