UNKNOWN - AUSTRIAN SCHOOL; D33.000; 'Wien den 17 Narz 1812; Dated 1812. 13 1/4 x 9 1/2 (2062); 361691; The Sir John and Lady Witt Collection of Drawings; Courtauld Institute neg. no. 950/17/30a;
Image Source
Columbia University Department of Art History and Archaeology Photograph Collection, digitized with support from the Samuel H. Kress Foundation