Description: Sheet 28SW2. Edn.5A. Area: Vierstraat - St. Eloi - Hollebeke - Wytschaete - l'Enfer - Oosttaverne - Spanbroekmolen - Garde-Dieu. German trench system in red, with names in blue. British trenches to depth of 200 yards in blue. Contours brown. Provisional sign for metre gauge railways in red. The edition prior to the Battle of Messines.
