A Study
image (diameter): 11.3 x 11.3 cm (4 7/16 x 4 7/16 in.)  sheet: 13.6 x 12.7 cm (5 3/8 x 5 in.)  mount: 28.5 x 19.5 cm (11 1/4 x 7 11/16 in.)  mount: 38.1 x 28 cm (15 x 11 in.)

About James Wells Champney