"The Lionel Pincus & Princess Firyal Map Division is very proud to announce
the release of more than 20,000 cartographic works as high resolution
downloads. We believe these maps have no known US copyright restrictions.
To the extent that some jurisdictions grant NYPL an additional copyright in
the digital reproductions of these maps, NYPL is distributing these images
under a Creative Commons CC0 1.0 Universal Public Domain Dedication. The
maps can be viewed through the New York Public Library's Digital
Collections page, and downloaded (!), through the Map Warper"
Charles / User:Chuq