11. DMO/11 Reference (shelfmark): DMO/11 Title: DMO Secret. Egypt and Soudan Collection Area: Map Collections Languages: English Date Range: 1886-1898 Extent: 1 volume
12. DMO/12 Reference (shelfmark): DMO/12 Title: DMO Secret. France Collection Area: Map Collections Languages: English Date Range: 1888-1903 Extent: 1 volume
13. DMO/13 Reference (shelfmark): DMO/13 Title: DMO Secret. Russia & India Collection Area: Map Collections Languages: English Date Range: 1886-1905 Extent: 1 volume
14. DMO/14 Reference (shelfmark): DMO/14 Title: DMO Secret. Military Policy & Organization, collected by Genl Chapman Collection Area: Map Collections Languages: English Date Range: 1891-1896 Extent: 1 volume
15. DMO/ADD Reference (shelfmark): DMO/ADD Title: Separate reports, not bound together Collection Area: Map Collections Languages: English Date Range: 1871-1938 Extent: 39 volumes, 45 booklets, 13 fascicles, comprising ca 5,500 pages, 126 maps, and 29 photographs.