Butterley Company correspondence file on leases at Farnsfield and minerals at Hexgreave Park estate of WH Wilson Involving Acton & Marriott, solicitors. Includes schedules of freeholds and copyholds on the Hexgreave estate, a copy of an agreement to power Hexgreave Park with electricity and a possible by-product plant with connected railway sidings. Coloured and annotated plan of surface arrangements for proposed new colliery at Farnsfield with corresponding index schedule, scale 2 chains to 1 inch, 140cm x 60cm Jan 1913-Sep 1914