Jean-Honoré Fragonard (Attributed), Jean-Antoine Houdon (Attributed)
Ink, ink wash and chalk on paper; H.10.94 in (27.8 cm), W. 9.41 in. (23.9 cm);
Art Institute of Chicago (Chicago, Ill.), 1933.806
A portrait sketch of Franklin has survived, attributed to Fragonard, and apparently derived from the bust by Houdon. An image can be found here.