Sectional aeronautical chart /
U.S. Coast and Geodetic Survey.
United States.Army Map Service.
United States.Department of Commerce.
Washington, D.C. : U.S. Coast and Geodetic Survey,
1950-58.
Covers the 48 contiguous states + Hawaiian Islands.
Relief shown by contours, gradient tints, and spot heights.
In lower margin of some maps: "Army Map Service, U.S. Army, Washington, D.C."
Each map includes insignia of U.S. Dept. of Commerce and index to adjoining sheets in lower margin.
Each map has separate title and sheet number.
Various eds. (Most sheets are the base map version).
Aeronautical charts