[The Opera Ball]

Photograph. Date: 1861–67, printed 1895–1910. Dimensions: Image: 36 x 27.9 cm (14 3/16 x 11 in.); ; Mat: 57.2 x 47 cm (22 1/2 x 18 1/2 in.). Medium: gelatin silver print, glass negative. Collection: Metropolitan Museum of Art.