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No. 361 — ButterknowleTownship of Lynesack and Softley, Durham Sheet 41 of 19thC Ordnance Map. Lat. 54° 37' 41", Long. 1° 49' 21". [ OS Grid Ref: NZ 11458 25907 (411458,525907) ] Account of No. 7 Hole, bored 150 yards North of the 1st Hole. February 23rd, 1829 Approximate surface level 650 feet above sea (Ordnance datum)
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