Four more for Whitman

From the New York Public Library, http://digitalgallery.nypl.org, here are four more stereo images of ferries in New York harbor, all dating from shortly after Crossing Brooklyn Ferry (1856). Each original stereopticon card is followed by a version that's viewable in stereo with a pair of red and blue lenses. Click any image to enlarge it.

 Ferry Boat on the East River, ca. 1860

New York Harbor, ca. 1865

South Ferry, ca. 1865

Three Ferry Boats, 1870