| Title | Plan of Forge Colliery Blackshale Coal workings, Whittington, including reference of quantities from royalties of W Fowler and West Staveley, worked by Sheepbridge Coal and Iron Co Ltd to 1873 and by Knowles and Co, 1873-1878, plan made by HW, 1873, scale 1": 1 chain, 41x26 inches, linen backed. |