John Carbutt 1866 Commissioners and Directors of the U.P.R.R. [Union Pacific Rail Road, Excursion to the 100th Meridian, October 1866]
Stereocard Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s00080 (digital file from original photo, front) LC-USZ62-34588 (b&w film copy neg. of half stereo), Call Number: LOT 3037, no. 8 [item] [P&P]
