XD2/12826
ACCOUNT BOOK for the Glynrhonwy Slate Quarries including accounts of payments made to each bargain taker; with details of the quantity of each size of slate produced and the resulting payment, and payments made for other work including clearing bad rock, work by the whimsey, blasting, powder, and making a new road. At the back of the book is a summary of the total payments for particular work and of the total quantity of each size of slate produced. [N.L.W. Glynllivon 2111]