Financial records of the Breconshire estate, comprising rentals (called audit books by the Tredegar estate), 1758-1927, draft and copy audit books, 1872-1915, farm rent ledgers, 1867-1921, Palleg, Brecon and Dderw estate rent ledgers, 1867-1941, rent collection books, 1868-1937, cash books, 1864-1940, surveyor's bills, 1862-1890, employee records, 1889-1935, taxation records, 1910-c.1936, and vouchers, 1850-1938.