MapMars : MEC-1 Prototype.
MEC-1 Prototype "Base 101. Base information Aug. 1962." "Lithographed by ACIC 7-65." "Prepared with the advisory assistance of E.C. Slipher of the Lowell Observatory, Flagstaff, Arizona." Includes notes, statistical data, and 6 inset polar maps of Northern and Southern Summer tilted at varying angles. Available also through the Library of Congress Web site as a raster image.
- Contributor: Aeronautical Chart and Information Center (U.S.)
- Date: 1962