United States. Army Map Service. North Decimal Degree 41.0000. South Decimal Degree 40.0000. East Decimal Degree -8.0000. West Decimal Degree -9.0000. Alternate title: Coimbra, Portugal. Polyconic projection. With Portuguese-English glossary. Relief shown by 100 m. contour interval, gradient tint and spot heights. Standard map series designation: A.M.S. M581. "Compiled from Portugal, 1:50,000, Instituto Geografico, 1904-35; Portugal, 1:100,000, Servicos Geodesicos, 1871-95; Portugal, 1:250,000, Estador Maior do Exercito, 1937-38; Spain & Portugal Road Map, 1:400,000, AMS, sheets 44 and 46, Third Edition, 1943; Railways in Spain & Portugal 1:1,500,000, GSGS, 1941, revised and supplemented from Intelligence Reports, 1942-44. Partially revised from aerial photography, 1943.".
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