Vivian Papers, including papers relating to the Cornish metal trade and to the history of the firm (Vivian and Sons) 1785-1896; title deeds c1740-c1929; maps and plans 1818-c1937; law papers and correspondence 1833-1925; investments 1828-1889; patents 1816-1924; ore contracts and papers 1881-1896; financial records 1864-1924; papers relating to materials, production and sales c1860-1919; miscellaneous papers 1853-1925. Williams Foster and Company Papers, including title deeds and related papers 1826-1926; rentals c1914 and undated (late nineteenth century); plans 1824-1889 and undated (late nineteenth century); miscellaneous files and papers 1868-1924; papers relating to processes and materials 1887-1906; papers relating to labour 1903-c1916; Goldenhill Cobalt Company undated (mid nineteenth century) and 1905-1909; miscellaneous papers 1870s-1920. Records of the British Copper Manufacturers' Limited/Yorkshire Imperial Metals/ICI, including minutes and reports 1918-1956; records relating to finance 1892-1933; correspondence 1925-1950; personnel records 1912-1950; property records 1901-1955; material relating to the Quick Firing Factory at Upper Bank 1937-1942.
Vivian Papers see LAC/126/A-K.
Williams, Foster Papers see LAC/126/L-S.
Records of the British Copper Manufacturers/Yorkshire Imperial Metals/I C I see LAC/126/T-Y.