Scale: 1:250000; Map Type: lcgft; Other Descriptive Notes about Map Series: Relief shown by contours, gradient tints, shading, and spot heights. Depths shown by gradient tints. Three classes of railways and five classes of roads are shown. Covers area north from Broadstairs, England to Rue, France to the south, and west from Brighton, England to St. Omer, France to the east. Sheet 1, Folkestone-Boulogne from set covering most of the Low Countries and northeastern France. Set includes various issues of some sheets, some reissued by U.S. Army Map Service. Some sheets have series designation A.M.S. M503 (G.S.G.S. 4042). Military grid. British Modified Grid (Purple). Projection, Cassini. Spheroid, Airy. ... Nord de Guerre Zone Grid (Blue). Projection, Lambert Conical Orthomorphic. Spheroid, DuPlessis (reconstituted).. Heights in metres.. Contour interval 50 metres.. Cataloging agency's copy overprinted with 1 dashed blue diagonal line extending south/northeast from roughly E 0°41ʹ/N 50°15ʹ to E 1°0ʹ/N 51°22ʹ with designation: 9°30ʹ W (June 1943). IXA. Cataloging agency's copy overprinted with 1 solid blue diagonal line extending south/northeast from roughly E 1°41ʹ/N 50°15ʹ to E 1°59ʹ/N 51°22ʹ with designation: 9° W (June 1943). IXA. Includes Conversion table, 2 convergence diagrams, Index of grid letters and indext to adjoining sheets, Reliability diagram, and To give a grid reference on this sheet. 100,000/4/43.E..
