1904. Rand McNally and Company. Railroads--Panama--Maps.
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2. Map showing location of Panama Canal : as recommended by the Isthmian Canal Commission of 1899-1902
1905. National Geographic Society (U.S.). Relief shown by contours and hachures. Depths shown by soundings.; Supplement to National Geographic, October 1905.; Oriented with north toward upp... National Geographic Society (Washington, D.C).
3. Map showing location of Panama Canal : as recommended by the Isthmian Canal Commission of 1899-1902
1905. National Geographic Society (U.S.). Scale 1:100,000 Relief shown by contours and hachures. Depths shown by soundings. Oriented with north toward upper left. In lower left margin: Andr... National Geographic Society.
1928. American Geographical Society of New York. Relief shown by contours, gradient tints, and spot heights. Depths shown by contours, bathymetric tints, and soundings.; Includes inset of "San Jos... The Society (New York).