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Amgueddfa Cymru – Museum Wales
Five paper booklets. Pages are divided into columns, with handwritten details in black ink on cream paper. Abstracts taken from Accounts Ledgers (5 parts), includes Coed y Beddw Colliery, Llan Colliery, Pentyrch Forge, Pentyrch Tin Plate Works, Ely Mills, Tin Mills 1823-1829
