| John K. Hillers On a trading Expedition [Indians of the Colorado Valley.] [U.S. topographical and geological survey of the valley of the Colorado River of the west, by J.W. Powell and A.H. Thompson. No. 079] 1873 Stereoview Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s00853 (digital file from original photo, front) LC-DIG-stereo-2s00853 (digital file from original photo, back) LL/109288
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