Material relating to the Cwmfelin Works 1886-1919, including share certificates 1897-1902; account book listing fortnightly expenditure 1886-1887; ledger detailing creditors and debtors of the Swansea Steel Company and the Cwmfelin Steel and Tinplate Company 1900-1904; returned cheques 1905-1909; fortnightly pay-sheets for Foxhole Works 1901-1912; business correspondence 1910-1919; company secretary's desk diary 1911; papers concerning works alteration and remodelling c1911; tender for an electric crane 1911; notices to employees concerning the cessation of contracts, alteration and re-organisation of plant and dangers of unauthorised entry 1912-1914; Abstract of Indenture giving right to make a reservoir to the lessees of the Cwmfelin Works together with attached plan 1889.
Material relating to the tin-plate trade generally 1899-1969 including: Iron, Steel and Allied Trades Federation council minutes 1914; report of a conference between Steel-makers and South Wales No. 1 district 1912; Papers, reports, minutes and deeds relating to the Welsh Plate and Sheet Manufacturers 1900-1928; transcript of conference proceedings concerning the proposed International Tinplate Cartel 1934; Memorandum and Articles of Association of the Tinplate Scheme Limited 1945; Tinplate Conference minutes 1969; Board of Trade export returns 1914; Tinplate trade output returns, calculations and statistical notes 1900-1966; miscellaneous papers and reports concerning wage-rates 1899-1969; export and production returns with statistical reports 1900-1966; papers, circulars, reports and correspondence relating to Tinplate Trade Labour Fund and Tinplate Trade S. and A. grades fund 1945-1965; extracts from 'Iron Age' relating to the Tinplate Trade 1913-1914; 'Private ledger No. 3': Clayton Tinplate Works, Pontardulais 1900-1912; 'Journal': Teilo Tinplate Works, Pontardulais 1915-1936; 'H.P. Lewis' analysis note-book' containing notes on analysis of coke, manganese, iron ore etc c1900; analysis note-book c1910.