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No. 2,713 — FerryhillTownship of Ferryhill, Durham Sheet 35 of 19thC Ordnance Map. Lat. 54° 41' 29", Long. 1° 33' 48". [ OS Grid Ref: NZ 28144 33027 (428144,533027) ] Account of Strata sunk through in the Dean Pit, Dean and Chapter Colliery, Ferry Hill, 1904 Approximate surface level 430 feet above sea (Ordnance datum)
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