Barlow: Photostat copy of a c1945 plan of Leewood Colliery, Barlow, Blackshale Seam, on the Haddon Estate, showing the layout of the workings, dates of extraction of coal (1929-1942), a section of the seam and neighbouring workings abandoned as uneconomic in 1938. Scale: 2 chains to 1 inch. 66" x 29". 20th cent