This is Sheet 248 and covers the area from Maesteg in the West to Pontypridd in the East and Mountain Ash in the North to Llantrisant in the South. Surveyed in 1868 - 75 and Published by Major General Sir C. W. Wilson K.C.B. F.R.S., R.F. Director General. 1887. Revised in 1904 and Published by Colonel R.C. Hellard R.E. Director General 1907. Railways inserted to February, 1914. Scale of One Inch to One Statute Mile.
Approx 49cms by 34cms.