| Title | Plan of Blackshale Coal Field showing Sheepbridge Ironworks, Devonshire Silkstone Colliery, Dunston Colliery, Monkwood Colliery, Nesfield Colliery, and lands owned by the Duke of Rutland, Duke of Devonshire, Reverend A C Broomhead and Trustees of E M Smith, scale 1":6 chains, 57x38inches, linen backed |