Alfred Hart 1865-1869 Heading of east portal Tunnel No. 8 [Central Pacific Railroad, California. Scenes in the Sierra Nevada Mountains. No. 204]
Stereoview Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s00553 (digital file from original photo, front) LC-DIG-stereo-2s00553 (digital file from original photo, back) LC-USZ62-56990 (b&w film copy neg. of full stereo) LC-USZ62-50457 (b&w film copy neg. of half stereo)
