An early issue of an uncommon sea chart of the eastern portion of Ireland extending from Dublin to Londonderry with north orientated to the right. It was first published by William Mount and Thomas Page in 1701 in the ‘English Pilot First Part, Southern Navigation’. The Mull’s of Galloway and ‘Cantyre’ in Scotland are also depicted. Belfast is also shown in detail with several soundings nearby. However the inset entitled ‘Lough Foyle or the Passage to London-Derry’ is featured in detail with an extensive network of soundings leading to the town. There are some hills depicted inland otherwise as might be expected there is no inland detail beyond coastal towns and harbours being named. NMM 423 no. 90; Shirley ‘Atlases in the BL’ M.M&P 1a no. 14.