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J. and G. Joicey and Co of Forth Banks West Factory, Newcastle, offices 29/21 Quay.
1828 George Joicey and (presumably) his brother James invested in a colliery at Tanfield Moor.
The company was first known as J. and G. Joicey and Company
After 1829 the colliery business became known as James Joicey and Co.
1850 James and George Joicey, Engineers
1867-94 Made around twenty-four locomotives for colliery and factory use
1886 Joicey's largest and smallest colliery tank locomotives illustrated in 'The Engineer' (see illustration). The smaller engine was 3' 6", made small and light for working above coke ovens when charging them with coal 
1890 J. and G. Joicey and Co, Pottery Lane, Forth banks, Newcastle, boiler makers, brass founders, engineers, iron founders.
1914 of Forth banks, Newcastle