Hercules chasing the Napions [art original]Lock, William, 1767-1847, artist[March 1781]engTitle, artist, and date from note inscribed in black ink below image: W. Lock, March 1781. The subject fro this drawing is Hercules chasing the Napions, but the drawing was left unfinished & Hercules does not appear.W. Lock = WIlliam Lock the 2nd., 1767-1847.