7 1/2 x 5 1/2 in. albumen photograph on 13 7/8 x 10 7/8 in. mount with imprint of "Department of the Interior, US Geological Survey of the Territories. Prof. F.V. Hayden in Charge" (fading to print; toning, light spotting, light corner and edge wear to mount). Although lacking a studio credit, the image was originally taken by Alexander Gardner between 17 February and 8 April 1867, when the Brule delegation visited the president in Washington, DC. Illustrated as Plate 125 in Paula Richardson Fleming's Native American Photography at the Smithsonian: The Shindler Catalogue (Smithsonian Institution, 2003).