This is the exceedingly rare 1857 issue of Colton’s folding map of Long Island.  Depicts Long Island in full inclusive of Manhattan and the southern shore of Connecticut.   Details the counties in red, green, yellow and blue pastels.  Shows the progress of the Long Island Railroad system as well as all important towns, bays, lighthouses, roads, and harbors.  This popular map, created in response to general interested in the settlement of long island prompted by the development of the LIRR, was originally drawn in 1855 and was published by the Colton firm until approximately 1870.  Dated and copyrighted, “Entered according the Act of Congress in the Year 1855 by J. H. Colton &amp; Co. in the Clerks Office of the District Court of the United States for the Southern District of New York.
<bdi><a href="https://en.wikipedia.org/wiki/en:J._H._Colton" class="extiw" title="w:en:J. H. Colton"><span title="United-States geographer and mapmaker">J. H. Colton</span></a>
</bdi>
1857 (dated)
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