| John Carbutt The Elkhorn Club on the banks of the Platte [Union Pacific Rail Road, Excursion to the 100th Meridian, October 1866] 1866 Stereocard Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s00078 (digital file from original photo, front), Call Number: LOT 3037, no. 6 [item] [P&P] LL/79513
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