Portsmouth Harbor New Hampshire & Maine 1847 Blunt fine miniature coastal mapPlan of Portsmouth Harbor. (Old Maps, 19th Century Maps, Americana, United States, New England, New Hampshire, Maine, Portsmouth, Great Bay). Issued 1847, New York by E. & G. W. Blunt. Engraved by Hooker. Mid 19th century engraved coastal map with attractive hand color. A superior visual example, clean. Seavey's Island is named, as is Great Island and New Castle. Fort Constitution identified with shining lighthouse. Whale Back light is also named, as