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No. 2,501 — ButterknowleTownship of Barony, Durham Sheet 41 of 19thC Ordnance Map. Lat. 54° 39' 27", Long. 1° 47' 47½". [ OS Grid Ref: NZ 13116 29188 (413116,529188) ] Account of Strata passed through in No. 6 Bore-hole Approximate surface level 606.40 feet above sea (Ordnance datum)
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