Charles David Winter, ‘Pillar of Angels, Strasbourg Cathedral’, ca. 1858, National Gallery of Art, Washington, D.C.
sheet (trimmed to image): 30.5 x 20.1 cm (12 x 7 15/16 in.)  mount: 44.9 x 33.4 cm (17 11/16 x 13 1/8 in.)