File:Ft-Duvall-Map-1938.jpg
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Ft-Duvall-Map-1938.jpg (586 × 379 pixels, file size: 61 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:17, 17 August 2010 | ![]() | 586 × 379 (61 KB) | Pgrig | Map is from the Supplement of the report by the U.S. Army Engineers on the Defenses of Boston Harbor, 1945. The two 16-inch gun positions of Battery Long are clearly visible, as well as the magazines, mechanical spaces, and plotting rooms in the undergrou |
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