Papers of the Pale estate belonging to Henry Beyer Robertson, 1879-1950, comprising correspondence on Council matters, especially the contract between Bala Urban District Council and Merionethshire County Council for the upkeep of the main roads, 1880-1948; pamphlets, diagrams and letters concerning the Pale hydro-electric plant, 1892-1936; and miscellaneous papers, 1885-1948, including items relating to the 1885 general election campaign in Merionethshire.