"Survey of Estates in the Parishes of Llanfair-tal-haiarn, Abergele, Bettws abergele, Llangerniew, Llansanffraid, Llanelian, Llandulas, Llandrillo, Llyffaen, Llanifydd and Wrexham, in the Counties of Denbigh and Caernarfon, and in the Parishes of Mold, Bangor, Holt, Worthenbury, Overton, Oswestry and Wem in the Counties of Flint and Salop, the property of Robert Wynn Esq. Finished 1781 by Slater & Bage." Thomas Slater was an estate surveyor frequently associated with Charles Bage, a well-known architect and engineer based in Shrewsbury, whose earlier career, in the 1770s and 1780s, focussed on surveying. 1781