"The Waldseemueller map, purchased by the library for $10 million in 2003, is believed to be the only one in existence. It had languished for four centuries in a German castle but now is on view in a hermetically sealed custom-made case that took nearly a year to design. And for the first time, it is paired with Waldseemueller's 1516 Carta Marina, or Navigators' Chart, thought by some to be the first printed nautical map of the entire world. "

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