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No. 2,730 — HaltonTownship of Halton, Northumberland Sheet 86 of 19thC Ordnance Map. Lat. 55° 00' 47", Long. 1° 59' 49". [ OS Grid Ref: NZ 00195 68730 (400195,568730) ] Account of Strata passed through in a Drift from the Surface at Halton Colliery, by Messrs. English Brothers Approximate surface level 615 feet above sea (Ordnance datum)
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