1. DMO/ADD/51 Reference (shelfmark): DMO/ADD/51 Title: 'Report and Proceedings of a Sub-Committee of the Committee of Imperial Defence appointed to consider the Question of Foreign Espionage in the United Kingdom. Printed for the Committee of Imperial Defence. October 1909.' 'Secret.' Collection Area: Map Collections Languages: English Date Range: 1909 Extent: 1 volume (49 pages)