Sketch B Showing the Progress of Section No. 2 U.S. Coast Survey 1844-1852

Triangulation chart of the Mid-Atlantic Coast of the United States from Cape Henlopen, Delaware Bay, and Delaware River through New Jersey, New York, Connecticut, and parts of Rhode Island coasts. Survey extents include up the Delaware River to Philadelphia and Trenton, along the New Jersey coast to Sandy Hook, Raritan Bay and Staten Island, New York, Hudson Valley, Long Island and Long Island Sound, Montauk Point, and on to Point Judith. Many locations are noted including Brooklyn, Williamsburg, Flatbush, Newark, Wilmington, New Haven, and New London, Sag Harbor, Jamaica Bay, and Rockaway Beach. Other survey sheets with dates are noted as well.
This chart does not have a neatline.

IMPORTANT NOTE:

All of our United States Coast Survey (USCS), United States Coast & Geodetic Survey (USC&GS), and similar maps and charts have been professionally unfolded and flattened using humidity baths, semi-permeable membrane, and drying blotter techniques.  Most others you typically see on eBay have not been, and worse, are quickly and crudely unfolded for the low-quality photos you see.  Unfolding these maps in that way is damaging and weakens them. Please be aware.