Great Britain. War Office. General Staff. Geographical Section. G.S.G.S. no. 2097. North Decimal Degree 40.5833. South Decimal Degree 39.7500. East Decimal Degree 27.6667. West Decimal Degree 26.0000. Alternate title: Turkey: Constantinople. Relief shown by shading and spot heights. Glossary of terms in Turkish and English. Map is part of "The Balkans, scale 1:250,000" a set of 23 sheets. For holdings see index. Corrected to July, 1915.