Charts. Philadelphia water front, Delaware River, Pa., surveys 1878-1915, surveys by Dept. of Public Works to 1923, surveys by U. S. Engineers to 1923; chart 380. Scale 1:9,600.
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Philadelphia water front, Delaware River, Pa., surveys 1878-1915, surveys by Dept. of Public Works to 1923, surveys by U. S. Engineers to 1923; chart 380. Scale 1:9,600.
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Charts. Philadelphia water front, Delaware River, Pa., surveys 1878-1915, surveys by Dept. of Public Works to 1923, surveys by U. S. Engineers to 1923; chart 380. Scale 1:9,600.