The collection comprises:
- Constitutional documents including: articles of partnership, agreements, certificates, trust deeds, and associated papers concerning partnership agreements, family settlements and conversion to a limited company and then a public company. 1803-1901 (BBE 1);
- Lease and tenancy agreements, correspondence, licences, land valuations and plans regarding premises in Kings Alley, Paul's Court, Shovel Alley, Huggin Lane, Gutter Lane and Wood Street, City of London. 1820-1937;
- Lease and tenancy agreements, contract for redemption of Land Tax and plans regarding premises in Belper. 1886-1945;
- Lease and tenancy agreements regarding premises in Brixton and Albert Square, Lambeth, Surrey (1813-1862) and deeds of premises in Two Waters, Hemel Hempstead, Hertfordshire (1799-1864);
- Patent documents relating to knitting and fabric machinery designed by William Cotton, William Lacey, Frederick Shaw, and George Brettle and Co. Ltd. 1860-1936;
- Other agreements and legal documents with associated correspondence (1818-1954), balance sheets (1963-1967), directors reports and statements of account (1937-1963), and correspondence including copy letter books. 1801-1971;
- Salary and staff records (1820-1872), production notebook (1912), photographs (c.1900-c.1980), inventories (1904-1939), illustrated notebook of Walter Bennett containing details about production methods (c.1926), costing book (c.1880), cancelled bills (1866-1867), printed price lists, including illustrated volumes (1853-1984), newspaper cuttings (1960-1984), advertising material, dinner invitations (1892-1984), accounts, account books and ledgers (1805-1936), copies of the company magazine, Yarns (1928-1932), printed reports (1932-1967), souvenir programmes (1928-1984), and an accounts book with copied references for account holders (1825-1837);
- Records of Oberon Athletic Club. 1894-1951;
- Records of Oberon Insurance Scheme. 1920-1951;
- Records of The Society and The Library. 1830-1902;
- Balance sheets of Samuel Farmer and Company, Leicester. 1904-1921;
- Balance sheets and associated papers of Cook and Watts Limited including Brettle Sales. 1967-1969.