Business records of John Edwards and Welsh Teldisc Records Ltd, 1962-1976, including balance sheets, 1963-1974; sales summaries, 1963-1974; invoices and delivery notes, 1963-1972; records of stock movement, 1965-1966; records of copyright enquiries, permissions and royalties, 1963-1974; recording contracts, 1964-1967; recording log book, 1964-1970; lyrics and sleeve notes, with related correspondence, 1963-1968; copy outgoing correspondence, 1965-1967; general incoming correspondence, 1964-1976; and papers of Mrs Olwen Edwards, 1955-1976.