| Title | Heath: Photostat copy of an 1899 plan of Owl Cotes Colliery, Heath, worked by Hardwick Colliery Company, showing workings commenced August 1897, and also old pits and workings. The Top Hard Coal worked on Lord Manvers' estate at Heath, exhausted in August 1897, also indicated. Scale: 2 chain to 1 inch: 37" to 29½". |