Relief shown by hachures.; Inset: Map of the Canal Zone (Isthmus of Panama) showing the Panama Canal.; Inset: Republic of Panama.; Shows steamship routes.; Page 398-399 of "Commercial atlas of America." 47 x 66 centimeters Scale [1:2,471,040] Statute miles, 39 = 1 inch kilometers., 66.8 = 1 inch General Map Collection
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