"Gee" Lattice Topographical Charts

"Gee Lattice Topos" were prepared for "Operation Overlord" on a Mercator projection at a scale of 1:500,000. They are overprinted with hyperbolic curves relating to wireless transmission signals from mobile "Gee" sets. These mobile “Gee” stations were established on the Continent as soon as sites for them had been cleared by the ground forces. The charts differ from standard air maps in that basic detail is printed in broken black, layer tints were omitted, pastel tints were used for woods, water and roads, and the hyperbolic curves were overprinted in strong colours. Soon after "D-Day," transmission signals from the mobile "Gee" chains were utilized by the heavy bombers of Bomber Command and Eighth U.S.A.A.F. and by the carriers of both Ninth U.S. Troop Carrier Command and Transport Command R.A.F.

Pages

: Berlin, Cologne Chain; GSGS (Series) ; 4534. GSGS (Series) ; 4072. 3rd ed. "Published at the War Office 1940". "Compiled and drawn at War Office, 1940. Heliographed Ordnance Survey, 1940." "Computedby A.W.A.S. Drawn at G.S.G.S.(A.M.)". "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Berlin, Reims Chain; GSGS (Series) ; 4521. GSGS (Series) ; 4072. 3rd ed. "Published at the War Office, 1940." "Compiled and drawn at War Office, 1940. Heliographed Ordnance Survey, 1940." "Overprint drawn at G.S.G.S.(A.M.) October 1944." "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Berlin, Ruhr Chain; GSGS (Series) ; 4524. GSGS (Series) ; 4072. 3rd ed. "Published by War Office, 1940." "Compiled and drawn at War Office, 1940. Heliographed Ordnance Survey, 1940." "Compiled and drawn at G.S.G.S.(A.M.)". "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Bremen, Louvain Chain; GSGS (Series) ; 4519. GSGS (Series) ; 4072. 2nd ed. "Published by War Office 1940". "Compiled and drawn at War Office 1940. Heliographed Ordnance Survey 1940." "Overprint drawn at G.S.G.S.(A.M.) September 1944." "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Bremen, Reims Chain; Lattice overprint series: GSGS 4519. Overprint drawn at G.S.G.S.(A.M.) October 1944. Sheet: Bremen N.E. 52/5 2/3. Projection: Europe (Air) conical orthomorphic (central zone). Grid amended September 1943. Topographic base map series: GSGS 4072. Edition: 2nd, 1942. Sheet: Bremen N.E. 52/6. Published by War Office 1940. Compiled and drawn at War Office 1939. Heliographed at Ordnance Survey 1940. Annotations: Latitude and Longitude parallel and meridian lines are emphasized with green coloured pencil. Possible flight path indicated in regular lead pencil lines starting and ending in lower-right margin. Location: Research Collections, Gordon Griffith fonds.

: Dijon, Reims Chain; GSGS (Series) ; 4521. GSGS (Series) ; 4072. "Published by War Office 1941." "Compiled and drawn at War Office, 1940. Heliographed Ordnance Survey, 1941." "Overprint drawn at G.S.G.S.(A.M.) November 1944." "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Frankfurt, Cologne Chain; GSGS (Series) ; 4534. GSGS (Series) ; 4072. 2nd ed. "Published by War Office 1940". "G.S.G.S. No. 4524" has been crossed out. "Compiled and drawn at War Office 1940. Heliographed Ordnance Survey 1940." "Compiled and drawn at G.S.G.S.(A.M.)". "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Frankfurt, Louvain Chain; GSGS (Series) ; 4519. GSGS (Series) ; 4072. 2nd ed. "Published at the War Office 1940". "Compiled and drawn at War Office 1940. Heliographed Ordnance Survey 1940." "Overprint drawn at G.S.G.S.(A.M.) September 1944." "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Frankfurt, Reims Chain; GSGS (Series) ; 4521. GSGS (Series) ; 4072. 2nd ed. "Published at the War Office 1940". "Compiled and drawn at War Office 1940. Heliographed Ordnance Survey 1940." "Overprint drawn at G.S.G.S.(A.M.) October 1944." "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Frankfurt, Ruhr Chain; GSGS (Series) ; 4524. GSGS (Series) ; 4072. 2nd ed. "Published by the War Office 1940". "Compiled and drawn at War Office 1940. Heliographed Ordnance Survey 1940." "Compiled and drawn at G.S.,G.S.(A.M.)". "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Le Havre, Channel Chain; GSGS (Series) ; 4504. GSGS (Series) ; 4072. "Published by War Office 1944". "Compiled and drawn at War Office 1940. Heliographed Ordnance Survey 1942." "Calculated by A.W.A.S. Overprint drawn at G.S.G.S.(A.M.) June 1944." "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Le Havre, Reims Chain; GSGS (Series) ; 4521. GSGS (Series) ; 4072. "Published at the War Office 1944". "Compiled and drawn at War Office 1940. Heliographed Ordnance Survey 1942." "Overprint drawn at G.S.G.S.(A.M.) November 1944." "Projection. Europe (Air) conical orthomorphic (central zone)". Dome notes in margins. Part of the Gordon Griffith fonds.

: Leipzig, Cologne Chain; Topographic base map series: GSGS 4072. Sheet: Leipzig N.E. 50/10. Published by War Office 1940. Compiled and drawn at War Office 1940. Heliographed at Ordnance Survey 1940. Lattice overprint series: GSGS 4534. Sheet: Leipzig N.E. 50/10. Overprint drawn at G.S.G.S.(A.M.). Projection: Europe (Air) conical orthomorphic (central zone). Location: Research Collections, Gordon Griffith fonds.

: Leipzig, Ruhr Chain [copy 1]; Topographic base map series: GSGS 4072. Sheet: Leipzig N.E. 50/10. Edition: 2nd, 1943. Published by War Office 1940. Compiled and drawn at War Office 1940. Heliographed at Ordnance Survey 1940. Lattice overprint series: GSGS 4524. Sheet: Leipzig N.E. 50/10. Overprint drawn at G.S.G.S.(A.M.) October 1944. Projection: Europe (Air) conical orthomorphic (central zone). Annotations: Latitude and Longitude parallel and meridian lines are emphasized with degrees and minutes circled in blue coloured pencil. Location: Research Collections, Gordon Griffith fonds.

: Leipzig, Ruhr Chain [copy 2]; Topographic base map series: GSGS 4072. Sheet: Leipzig N.E. 50/10. Edition: 2nd, 1943. Published by War Office 1940. Compiled and drawn at War Office 1940. Heliographed at Ordnance Survey 1940. Lattice overprint series: GSGS 4524. Sheet: Leipzig N.E. 50/10. Overprint drawn at G.S.G.S.(A.M.) October 1944. Projection: Europe (Air) conical orthomorphic (central zone). Location: Research Collections, Gordon Griffith fonds.

: Munchen, Reims Chain; Topographic base map series: GSGS 4072. Sheet: Munchen N.E. 48/10. Published by War Office 1940. Compiled and drawn at War Office 1940. Heliographed at Ordnance Survey 1940. Lattice overprint series: GSGS 4521. Sheet: Leipzig N.E. 50/10. Overprint drawn at G.S.G.S.(A.M.) October 1944. Projection: Europe (Air) conical orthomorphic (central zone). Annotations: Latitude and Longitude parallel and meridian lines are emphasized with green coloured pencil. Location: Research Collections, Gordon Griffith fonds.

: Nantes, Reims Chain; GSGS (Series) ; 4521. GSGS (Series) ; 4072. "Published by War Office 1941". "Compiled and drawn at War Office, 1940. Heliographed Ordnance Survey, 1941." "Overprint drawn at G.S.G.S.(A.M.) November 1944." "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Nantes, Reims Chain [copy 2]; GSGS (Series) ; 4521. GSGS (Series) ; 4072. "Published by War Office 1940". "Compiled and drawn at War Office, 1940. Heliographed Ordnance Survey 1941." "Overprint drawn at G.S.G.S.(A.M.) November 1944." "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Paris, Channel Chain; GSGS (Series) ; 4504. GSGS (Series) ; 4072. 2nd ed. "Published by War Office 1940". "Compiled and drawn at War Office, 1940. Heliographed Ordnance Survey, 1940." "Calculated by A.W.A.S. Overprint drawn at G.S.G.S.(A.M.) June 1944". "Projection. Europe (Air) conical orthomorphic (central zone)". Part of the Gordon Griffith fonds.

: Paris, Reims Chain; 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.