A survey and valuation of the Bachegraig estate in the parishes of Tre Meirchion and Bodvarry, Flintshire, belonging to Gabriel Piozzi, Esq., taken in the year 1790 by Samuel Minshull. Following the survey are estate accounts in the hand of Gabriel Piozzi, 1788-1807, including particulars of rents, arrears of rents, taxes, tithes, and farm and household expenses; and memoranda of the letting of properties, tithes, hay, etc., by Sir John [Salusbury Piozzi] Salusbury, 1820-4. Accompanying the survey is a volume of seven ink and coloured field plans, with schedules, on vellum, shelved at the time of publishing the Handlist description in the Department of Prints, Drawings, and Maps.

An account book, 1803-1810, kept by Thomas Edwards, including entries of agricultural and timber accounts, and accounts of Golch Hill Rake, Talar-goch, Brynford Yard, Holywell Level, Celyn, Terfyn, Afon-goch, and Mwynbwll lead mines in Flintshire. The book was originally used in connection with a paper mill on the river Wheeler, 1786-1787.