Lease (attested copy) for 99 years, rents £12 5s, 10s, 10s and 5s yearly and £30 for mineral rights, 18 June 1751: John Llewelyn sen. and John Llewelyn jun. (his s. and h.), both of Ynysygerwn, to Rowland Pytt sen. of Lydney (co. Glos.), ironmaster, and Thomas Lewis of Cadoxton-juxta-Neath, gent.: Lands at Ynysygerwn, Ynis y Gellen and Aberdulais; the Little House, formerly a tucking mill at Aberdulais; in Cadoxton-juxta-Neath. Includes rights to construct a mill for the manufacture of bar iron at Ynyslloi; to construct weirs across the river Neath and to divert water to the mill; to build works at Aberdulais for the manufacture of iron plates, taking water from the river Dulais; to dig for coal in any of the lands of John Llewelyn sen. and jun. in Cadoxton-juxta-Neath and Llantwit-juxta-Neath. 1751

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