Shows railroads, steamship routes, and submarine telegraph lines.; Depths shown by gradient tints, isolines, and spot heights.; "Copyright, 1913, by American Bank Note Company, New York."; Supplement to the February, 1913, issue of the National Geographic magazine.; Includes inset and cross-section of Panama Canal Zone.
31 x 48 centimeters
Scale 1:9,000,000
General Map Collection