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 Ottoman Empire. "Compiled at the Intelligence Division, War Office by Major F.R. Maunsell, R.A. from Russian 5 Verst Surveys. Turco-Persion Frontier Map 1913-14, Lieut. Col. Picot's Reconnaissance in Azerbijan 1895 and Major F.R. Maunsell's R.A. Reconnaissance 1900." Partially revised to Aug 1916. With a glossary. Set is complete, see index.
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