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No. 2,361 — AllendaleTownship of Low Forest, Northumberland Sheet 107 of 19thC Ordnance Map. Lat. 54° 51' 56", Long. 2° 14' 43". [ OS Grid Ref: NY 84259 52345 (384259,552345) ] Account of the Measures sunk through in the Holms Linn Shaft, Blackett Level. Approximate surface level 888 feet above sea (Ordnance datum)
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