This is a massive blue-backed working sea chart on 3 joined sheets, featuring astonishing detail of the Irish Sea. It spans from Cornwall just south of the Bristol Channel to the Scottish peninsula of Kintyre in the north, and it shows stretches of the English, Welsh, Irish, and Scottish coastlines, as well as the Isle of Man. Along the coasts are towns and cities, rivers, roads, and mountains and hills with their elevations. There is a tremendous amount of hydrographical information, including currents, soundings, lighthouses (marked with red and yellow), anchorages, compasses, navigational notes, and more. The chart also features 12 insets: Holyhead Bay, North Rocks &c., Entrance to Lough Strangford, Entrance to Carlingford, Entrance to Lough Foyle, Belfast Lough, Firth of Clyde, Douglas Bay, South Coast of Man, Milford Haven, Lundy Island, and Tuskar Rocks &c.. A number of small views line the chart including views of a few lighthouses and the Tower of Refuge, a castle on the Isle of Man. North is oriented to the upper right corner.

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Condition: B+

An overall bright and clean chart with a crisp impression featuring original color (red and yellow) on lighthouses. There is an edge tear at right entering less than 2.5" into image, light foxing at far right, and some light stains at far left.