topic

• History6
• Civil war2
• Fortification2
• Military maps2
• Defenses1
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name

• American Civil War (1861-1865)5
• Hergesheimer, E. (Edwin)2
• Humphreys, A. A. (Andrew Atkinson), 1810-18832
• Macomb, J. N. (John N.), 1810 or 1811-18892
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collection

• Maps of North America8

place

• Virginia6
• Richmond Region (Va.)3
• Maryland2
• Richmond (Va.)2
• Richmond Region2
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genre

• Military maps3
• Topographic maps1

publisher

• Army of the Potomac3
• Frederick Leypoldt1
• Head Quarters, Army of the Potomac, Engineer Department1
• Topographical Engineers1
• Topographical Engineers Office1
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division

type

• cartographic8