A.C. Vroman, ‘In the Petrified Forest (General View, Middle Park)’, ca. 1895-1897, National Gallery of Art, Washington, D.C.
image: 15.2 x 20.3 cm (6 x 8 in.)  sheet: 16.5 x 21.6 cm (6 1/2 x 8 1/2 in.)