This large, linen backed sea chart is from Eldridge's series of New Coast Charts that covered the northeastern coast from New York to Maine. It covers Martha's Vineyard, Nantucket Island and the adjacent coastline of Massachusetts and the important passage known as lightship alley. There is excellent navigational detail throughout the chart. The legend locates 13 different type of buoys, prevailing currents, light houses and ships, anchorages, rocks, shoals, bottom types and fishing grounds. Dotted lines illustrate the shipping lanes including distances between ports. On verso is the original paper label with title, with a price of $1.60, and a list of the other charts in the series. Large-scale nautical charts are generally rare on the market today due to the fact that they were used in a damp, rough environment and generally discarded as updated versions became available.

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Condition: B+

Toned with some light stains, minor creases and some professional repairs. Overall very good for a working nautical chart.