20th Cab 2.3.2 Bachelder, John Badger
Map of the battlefield of Gettysburg, July lst, 2d, 3d, 1863. Published by the authority of the secretary of war, office of the chief of engineers, U.S. army. Positions of troops compiled and added by J.B. Bachelder from the official reports, consultations on the field, private letters, etc. of the officers of both ar mies. Boston: J.B. Bachelder. 1876. 3 folded maps. Size of each, 281/4 x 24 inches. Scale, 1000 feet to 1 inch. Each map is devoted & single day's battle.
The Walter Updike. Lewisson Collection of Washingtoniana