(i) Most Noble Hugh Lupus, Duke of Westminster.
(ii) Adam Eyton of Llanerch-y-mor, near Holywell, co. Flint, lead smelter, Alfred Osten Walker of Chester, lead smelter, and Edward Williams of Elwy House, King Street, Wrexham, co. Denbigh, mining agent.
Mines of lead ore, lapis calaminaris, black jack, and other ores of zinc and copper in land in the townships of Esclusham Above and Minera, part of the lordship of Bromfield and Yale, called South Minera Lead Mines, and comprising the mining setts called Pool Park and Lower Pool Park (map endorsed, showing various named shafts).
Term: 21 years.
Royalty: 15s. per ton of lead ore, one twentieth of copper ore, and 1s. per ton of blend, calamine and black jack.
Counterpart of D/GR/86.