Chaldron Wagon Throckley Colliery - Pack NThree wagon multi pack, NER 4T Chaldron Pack N: The Throckley Coal Company Formed in 1867, the Throckley Coal Company owned a number of pits to the west of Newcastle, on the north bank of the River Tyne, and were linked to Staiths situated at Leamington by two separate railway branches. Throckleys fleet of Chaldrons were in use right up to 1947, when they were scrapped by burning, and the company was one of the few that fitted their ex NER P1