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Subject
- Engineering drawings[remove]13
- Historic sites[remove]13
- Fort Sumter National Monument (Agency : U.S.)9
- United States--History--Civil War, 1861-18659
- Conservation and restoration7
- Artillery4
- Fort Moultrie (S.C.)3
- Clippings (Books, newspapers, etc.)2
- United States--History--Civil War, 1861-1865--Battlefields2
- Engineering and construction1