* At head of title: Supplement to the New York observer.
<ul><li>Issued in parts; maps dated 1841-1845.</li>
<li>National Endowment for the Humanities Grant for Access to Early Maps of the Middle Atlantic Seaboard.</li></ul>
Scan by NYPL
1842-[1845]
<a rel="nofollow" class="external free" href="https://digitalcollections.nypl.org/items/510d47e1-c825-a3d9-e040-e00a18064a99">https://digitalcollections.nypl.org/items/510d47e1-c825-a3d9-e040-e00a18064a99</a>