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Description: | Elevated view of the pile-pontoon railroad bridge across the Mississippi River at Prairie du Chien. The bridge was built and patented by John Lawler in 187... |
Date: | 1922 |
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Description: | View across field of workers constructing a Chicago, Burlington and Quincy Railroad bridge. |
Date: | |
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Description: | Group of men at the construction of a railroad branch line among piles of stones. Railroad ties placed on the ground are visible on the platform in the bac... |
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