1. DMO/4/45 Reference (shelfmark): DMO/4/45 Title: War Office systems of foreign countries. Compiled in the Intelligence Division of the War Office by Captain C.E. Callwell, R.A., D.A.A.G., and Captain E. Agar, R.E., Staff Captain. 1892. London: Printed at the War Office, by Harrison and Sons, 1892. Collection Area: Map Collections Languages: English Date Range: 1892 Extent: 70 pages