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Cahill Butterfly Map 1909
Cahill 1909
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Cahill-Keyes M-layout world map silhouette including Antarctica
Cahill-Keyes 1975

On 2011-12-06 (Web and print), The New York Times published a set of 10 maps based on the Cahill-Keyes projection.

http://www.nytimes.com/interactive/2011/12/06/science/1206-world.html

Here is that page, courtesy New York Times:

Ten New York Times IT maps, based on Cahill-Keyes projection
© 2011 The New York Times Company

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