Date: | 07 19 1917 |
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Description: | Elevated view of Pawling & Harnischfeger 25-ton type "N" bridge with a 5-ton type "A" trolley and a standard bottom block, equipped for exterior use. There... |
Date: | |
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Description: | Elevated view of a copper mining camp with desert hills in the background. Caption reads: "Greatest Copper Camp in the World, Ely, Nevada." |
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