1. Map of the United States showing Military Posts and Principal Lines of Communication / Prepared by Published / Created: . Call Number: 75H 1895 Container / Volume: BRBL_00414A Image Count: 1 Resource Type: Maps, Atlases & Globes Subject (Geographic): United States--Maps Found in: Beinecke Rare Book and Manuscript Library > Map of the United States showing Military Posts and Principal Lines of Communication / Prepared by direction of the Secretary of War in the Office of the Chief of Engineers U.S.A.