"A Profile of the Deep Cutting and Tunnelling from Cotes Field through Hayle Wood and Sapperton Hill to Daneway Valley, with the Depths to the several marks, as now set out."
Copy of original. Includes a section of the cut at the mouth of the tunnel. Surveyed by Robert Whitworth. Plan has been photocopied in 3 sections and stuck together.
August 1783 (nd [20th century])