Map sheet title is alternate spelling of Doiran. Map produced by Survey Company Royal Engineers, British Salonika Force No.320, 9-7-17. Trenches inserted from aeroplane photographs up to 26-6-17. Edition 3A. Stamped "Confidential." guide to the pronunciation of toponyms printed in the margin. Sheet title pencilled on back; heavy linen backing; glossary; note regarding the accuracy of streams; note regarding sources used to compile the map; note regarding contour intervals; grid with 1000 metre squares. Location: Research Collections WWI Trench Maps Fonds, Box 9, Envelope 9.