“Just because we're starting with Amazon, this is not the be-all and end-all of our digital strategy and distribution,” said Jim Lee, co-publisher of DC Entertainment, the parent company of DC Comics.

Mr. Philips is executive vice president of News Corp., which owns Dow Jones & Co., the publisher of The Wall Street Journal.

Only one other copy of this map is known to exist. The map’s cartographer was A.F. McKay ; the publisher (probably) Land &River Improvement Co.; and the printer Rand, McNally and Co.