[Demonstration]

ca. 1930

Image: 4 5/8 x 6 3/4 in. (11.7 x 17.1 cm)
Paper: 4 5/8 x 6 3/4 in. (11.7 x 17.1 cm)
Mat: 9 x 12 in. (22.9 x 30.5 cm)

Photo-Gelatin silver