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Alfred Hart
Laborers and rocks, near opening of Summit Tunnel
[Central Pacific Railroad, California. Scenes in the Sierra Nevada Mountains.]
1865-1869
Stereoview
Library of Congress, Prints and Photographs Division
Reproduction Number: LC-DIG-stereo-1s00510 (digital file from original photo, front) LC-DIG-stereo-2s00510 (digital file from original photo, back) LC-USZ62-50742 (b&w film copy neg. of half stereo)
LL/108996
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