National Anthropological Archives, Smithsonian Institution.
Source:
Glass Negatives of Indians, (Collected by the Bureau of American Ethnology) 1850s-1930s, National Anthropological Archives (NAA INV 06494400 OPPS NEG 03068)
An photograph of a man identified by the photographer as Yum-Sum-Kin and other photographs as Ume-Som-Kin which is the same person just different spelling. He is wearing his regalia in front of a wool blanket back drop.