Fine large format sea chart of the coastline from Long Island Sound to the Outer Banks of North Carolina, published by Blunt in New York City, the most famous of American Chart makers of the period.
The map shows light houses, light ships and channel buoys colored in red and yellow.
Working sea charts are inherently rare due to the nature of their use aboard ships. Although likely common when first made, the vast majority of them were either destroyed by use or destroyed intentionally when new updated versions were obtained.
Edmund Blunt started in business in 1796, before growing to become America's foremost producer of charts, pilot guides in the19th century. Blunt's charts were the standard for American Navigations charts from 1810 to the 1860s and a number of the engravers who worked for them would later find work as competitors.