Date: | 05 21 1939 |
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Description: | Elevated view of the General Zebulon Pike Lock and Dam No. 11, located on the Mississippi River between Dubuque, Iowa, and Grant County, Wisconsin. The Loc... |
Date: | 03 1913 |
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Description: | A view looking toward the Atlantic entrance to the Panama Canal, over the Gatun Locks during construction. The entrance lighthouse is seen in the distance.... |
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