Minerva (Study after a Sculpture), n.d., Cont? crayon, stumping, heightened with white chalk on faded blue paper, sheet: 11 1/2 x 8 7/16 in. (29.2 x 21.5 cm), Drawings, Louis L?opold Boilly (French, La Bass?e 1761?1845 Paris), This study of a bust of