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No. 2,129 — WallsendTownship of Wallsend, Northumberland Sheet 89 of 19thC Ordnance Map. Lat. 54° 59' 13", Long. 1° 31' 55". [ OS Grid Ref: NZ 29948 65925 (429948,565925) ] Account of Strata sunk through in the A Pit, Wallsend Colliery, from the High Main to the Low Main Seam, 1821, together with Strata proved to Beaumont Seam Approximate surface level feet above sea (Ordnance datum)
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