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Depths shown by soundings. British squadron represented pictorially. Inset: Plan of the platform in Sulivans Fort, by Lt. Colonel Thos. James of the Rl. Rt. of Artillery. Scale ca. 1:26,200. LC Maps of North America, 1750-1789 1545 Guthorn, P.J. Brit. maps 66-4 See case file for transparency.

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