Map of the seat of war, showing the battles of July 18th, 21st & Oct. 21st, 1861.Corbett, V. Pc1861.Inset: Leesburg to Harper's Ferry. Scale: 1 5/8 in. = 10 miles.Inset: Map from the mouth of Occoquan river to Richmond, showing rebel batteries of the Potomac river. Scale: 2 3/8 in. = 30 miles.Lith.: A. Hoen & Co., Baltimore.ms. notes on verso "Map ofcartographic