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No. 707 — DentonTownship of East Denton, Northumberland Sheet 97 of 19thC Ordnance Map. Lat. 54° 59' 28", Long. 1° 41' 36". [ OS Grid Ref: NZ 19619 66331 (419619,566331) ] Account of Boring in the Francis Pit, East Denton, from the Thill of Newbiggin Stone Coal Seam. October 5th, 1794 Approximate surface level 331 feet above sea (Ordnance datum)
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