A relaxed face (left); Profound attention (right), between 1854 and 1856

Date: between 1854 and 1856. Dimensions: image: 22.3 × 16.2 cm (8 3/4 × 6 3/8 in.); ; mount: 40.3 × 27.4 cm (15 7/8 × 10 13/16 in.). Medium: albumen print. Collection: National Gallery of Art.