Great Britain. War Office. Intelligence Division. I.D.W.O. no. 1522. Great Britain. War Office. General Staff. Geographical Section. G.S.G.S. no. 1522. Relief shown by form lines and spot heights. Some sheets from this set were revised and issued by War Office. Geographical Section. General Staff, published as G.S.G.S. no. 1522, 1522a. Series covers Mesopotamia and eastern Anatolian parts of Ottom Empire. "Compied at the Intelligence Division, War Office by Major F.R. Maunsell, R.A. from Capt. F. Bennet 1883, Capt. F.R. Maunsell 1898, Haussknecht 1869.
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