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No. 365 — ButterknowleTownship of Lynesack and Softley, Durham Sheet 41 of 19thC Ordnance Map. Lat. 54° 37' 46", Long. 1° 49' 21". [ OS Grid Ref: NZ 11458 26062 (411458,526062) ] Account of No. 11 Hole, bored about 25 yards to the North from the 10th Hole. July 10th, 1829 Approximate surface level 685 feet above sea (Ordnance datum)
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