Consignment books, sales journals, ledgers, cash books, receipt books, wages/salaries books, insurance registers, day books, petty cash books. Mine record books, agenda books and minutes. Note books from the Blackheath Colliery, Bonnie Dundee Coal Company, Harts Aberdare Collieries Ltd., Caledonian Collieries, Edward S. Cornwall Colliery and Rothwell Haigh Colliery. Maps and plans of above collieries and geological and topographical survey maps.