Topographic base map series: GSGS 4072. Sheet: Paris N.E. 48/2. Published by War Office 1940. Compiled and drawn at War Office 1940. Heliographed at Ordnance Survey 1940. Lattice overprint series: GSGS 4521. Sheet: Paris N.E. 48/2. Overprint drawn at G.S.G.S.(A.M.) November 1944. Projection: Europe (Air) conical orthomorphic (central zone). Annotations: Latitude and Longitude parallel and meridian lines are emphasized with degrees and minutes circled in green coloured pencil. Location: Research Collections, Gordon Griffith fonds.