- BJ1.
- Series
- 1859-1933.
Records relating to slate quarries in which Jonathan Davies had business interests-mainly as liquidator, including Bugail Slate Company Limited, 1875-1905; Moelpenamnan Quarry, 1873; Votty and Bowydd Slate Quarries Company, Limited, 1885-1933; and Wrysgan Slate Quarry Co. Ltd, 1859-1933.