McKinley's desk outline maps, No. 124a : France (Gaul) / McKinley Publishing Co.McKinley Publishing Company[1933?]Ms. notes "Subject: Trench maps, prepared by G.S.G.S. British Ordnance Survey, gift of Norman Bryant, Date: c. Oct. 15, 1938. World War. Explanation: Copies at Yale indicated on chart below"; Ms. chart on map indicating trench locations setcartographic