"Guillaume-Benjamin-Amant Duchenne (de Boulogne), Painful recollection or painful thoughts, 1854-1856, albumen print, printed 1862, image: 21.8 × 15.8 cm (8 9/16 × 6 1/4 in.)
mount: 40.3 × 27.3 cm (15 7/8 × 10 3/4 in.), W. Bruce and Delaney H. Lundberg Fund, in Honor of the 25th Anniversary of Photography at the National Gallery of Art, 2015.52.7"