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No. 1,888 — Stella and TowneleyTownship of Ryton, Durham Sheet 2 of 19thC Ordnance Map. Lat. 54° 58' 23", Long. 1° 44' 14". [ OS Grid Ref: NZ 16819 64311 (416819,564311) ] Account of Strata passed through in the sinking of the Addison pit, at Hedgefield. First sod cut January 26th, 1864 ; sinking commenced February 1st ; finished January 26th, 1865 Approximate surface level 25 feet above sea (Ordnance datum)
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