Scale 1:15,700,000 at lat. 45°N ; Mercator projection
Each map includes three insets., The three maps cover the same area, include the same data, and are identified as October 1983, November 1983 and December 1983., "16.", "Prepared from data furnished by the Defense Mapping Agency of the Department of Defense and by the Department of Commerce.", and Also includes four ancillary maps on Monthly water hazards: Wind-chill -- Survival time -- Superstructure icing potential -- Icebergs.