Image: The Summit Tunnel, 1,200 feet long, Livermore Pass, by Thomas Houseworth & Co.
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Title: The Summit Tunnel, 1,200 feet long, Livermore Pass.
Credit: This image is available from the New York Public Library's Digital Library under the digital ID G92F103_059F: digitalgallery.nypl.org → digitalcollections.nypl.org
Author: Thomas Houseworth & Co. -- Publisher
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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