Artist: James McNeill Whistler Date: 1890 Collection: Art Institute of Chicago Accession Number: 33.284 Medium: graphite pencil Support: off-white card Size: 3 3/16 x 6 1/8" (81 x 156 mm) Signature: butterfly Inscription: '33.284' and 'OCT' in unknown hands; 'WSB' (collector's mark of Walter Stanton Brewster)