| Charles Weitfle "The Devil's Slide" Weber Canon. [Stereoscopic Views on Line of Union Pacific R. R.] 1867-1895 (ca) Stereoview Bancroft Library, University of California Berkeley Camp (Charles L.) Collection of Stereographs, ark.cdlib.org/ark:/13030/tf9199p6mg LL/102991 Photographer's number: 416
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