'Map of the coal works and strata at the North-Eastern End of the Anglesea [sic.] Coal Basin, the property of Holland Griffith Esqre and of the Earl Uxbridge and Mrs Ann Lloyd. Shewing also the several allotments of Malldraeth and Corsddaugau [Cors Ddyga] Marsh and the situations of the several Coal-pits near to the SW corner of the Marsh etc. by John Farey Senior, Mineral Surveyor of Upper Crown Street Westminster' Tracing paper Scale of chains 7 3/4 to an inch Scale of yards 170 11/2 to an inch Late 18th century