- 1P. R. Jackson & Co trade catalogue (YA1996.138)
1899, item - 2Foundry Equipment Sand and Shot Blast Machines (YA1996.3237/10)
c1929, item - 3Rod Mill (YA1997.43/1)
1974, item - 4Rod Mill (YA1997.43/2)
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1974, item - 5Galvanizing (YA1997.43/3)
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1974, item - 6Barb (YA1997.43/4)
1974, item - 7Untitled (YA1997.43/5)
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1974, item - 8Geoffrey Key Sketches of Wire and Rod Making Process at Richard Johnson & Nephew (YA1997.43)
1974, fonds - 9Stock catalogue of Hall and Pickles, Iron and Steel Merchants, Manchester. (YA2003.28)
1910, item
