The Twin Ports, Duluth/Superior harbor, Minnesota and Wisconsin.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
[Detroit, Mich.?] :
US Army Corps of Engineers, Detroit District,
[1986?]
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| Subjects: |
| Item Description: | Shipping list number: 86-807-P. |
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| Physical Description: | 1 sheet : illustrations (some color), 1 color map ; 43 x 41 cm. folded to 22 x 11 cm. |