Map of area around the Black Sea, Caspian Sea and Eastern Mediterranean, including Turkey and parts of the USSR, North Africa and the Middle East, drawn up by the Survey Department, Egypt, 1913, and the Royal Geographical Society, under the direction of the Geographical Section of the General Staff, 1916 and 1918, marked with the boundaries of Armenia and Georgia as laid down by the Treaty of Alexandropol, 1920, lines in the Caucasus held by the Turks and by the Bolsheviks, Mar 1921, and boundaries in the Caucasus proposed by Moscow, 1921.

The collection consists of pamphlets written by Davidson, papers relating to his part in the Allied Military Mission to Moscow, USSR, 1939 and papers relating to his career in World War Two as Commander in the Royal Artillery and as Director of Military Intelligence. The World War Two material includes maps used in the retreat of the BEF (British Expeditionary Force) to Dunkirk, France, maps used as Director of Military Intelligence to illustrate the progress of the war to Queen Mary, mother of George VI and a personal diary kept while Director of Military Intelligence. There is also a file containing correspondence with E E Thomas of the Cabinet Office Historical Section relating to aspects of Military Intelligence during World War Two.