..... from Orme'sHead to Formby Point surveyed and navigated by M. Mackenzie Senr. Engraved by Thos. Conder. This is Chart IX from 'A Maritim Survey of Ireland and the West of Great Britain.....' by Murdock Mackenzie, published in March 1st, 1776. Horizontal and vertical folds which have some browing and have been strengthened on verso. Some nibbling along top edge.
Approx 103cms by 84cms.