1840 blunt nautical chart map (1 risultati)

Average. Mended tears with some loss, areas of scuffing. Stabilized and mounted on fresh linen. Size 38.5 x 76.5 Inches. This is Edmund Blunt's rare, monumental 1840 nautical chart or map of the northeast United States, extending from New York to Cape Canso in Nova Scotia, and is the most authoritative American chart of these waters available at the time. It provides not only granular detail of the coastline, but also detailed soundings for the crucial sailing lanes from Halifax to Boston. It is a working chart - typically referred to as a 'blueback chart' due to the color of the reinforcing paper it was originally mounted to. Rather than contend with multiple charts, mariners typically preferred large charts composed of several sheets: hence the impressive expanse of the present chart. The Main Chart This chart covers from Barnigat Lighthouse on the Jersey Shore to the Cranberry Island Lighthouse east of Cape Canso and extends farther east to include Sable Island and the Sable Island bank. As such, the chart is an essential tool for navigators making the transatlantic crossing from England and Ireland via Halifax. The Insets The chart includes minutely-detailed insets of essential harbors, including Halifax Harbor, Cape Cod Harbor, Buzzards Bay, and Boston Harbor. Three of these - all but Cape Cod - rely on the still authoritative (though rapidly aging) charts of the great nautical cartographer J. F. W. DesBarres. The Cape Cod chart, exhaustively sounded, is early work of the topographical engineer James Duncan Graham. Blueback Charts Blueback nautical charts began appearing in London in the late 18th century. Bluebacks, as they came to be called, were privately published large format nautical charts known for their distinctive blue paper backing. The backing, a commonly available blue manila paper traditionally used by publishers to wrap unbound pamphlets, was adopted as a practical way to reinforce the low-quality paper used by private chart publishers trying to cut costs. The earliest known blueback charts include a 1760 chart issued by Mount and Page and a 1787 chart issued by Robert Sayer. The tradition took off in the early 19th century, when British publishers like John Hamilton Moore, Robert Blachford, James Imray, William Heather, John William Norie, Charles Wilson, David Steel, R. H. Laurie, and John Hobbs, among others, rose to dominate the chart trade. Bluebacks became so popular that the convention was embraced by chartmakers outside of England, including Americans Edmund March Blunt and George Eldridge, as well as Scandinavian, French, German, Russian, and Spanish chartmakers. Blueback charts remained popular until the late 19th century, when government subsidized organizations, such as the British Admiralty Hydrographic Office and the United States Coast Survey, began issuing their own superior charts on high quality paper that did not require reinforcement. Publication History and Census This scarce chart was executed in 1828, when Blunt's workshops were located at 154 Water Street on the corner of Maiden Lane. This example, with the notation that it has been corrected to 1840, shows the firm's new address of 179 Water Street, at the Southeast corner of Burling Slip. 1848 examples of this chart, for example the copy at the New York Public Library, show this address but with significantly altered typography in the title, suggesting more drastic changes to the chart beyond the title. We see five examples of the 1828 edition in OCLC, with two further copies of the 1844 edition and two of the 1848. We see no examples of the present 1840 edition in any institutional collections. References: Compare with Rumsey 4662.004. OCLC 229468079.