LONDON TELEPHONE DIRECTORY -- The United Telephone Company, Limited. List of Subscribers to the Exchange System. 1884. 8° (disbound, staining, some advertisements missing). Original paper wrappers (detached, significant loss). Among the subscribers listed are W.S. GILBERT (3205), SIR ARTHUR SULLIVAN (3085) and RICHARD D'OYLEY CARTE, proprietor of The Savoy Theatre (2602), where the 'Savoy Operas' of G&S were successfully staged in the 1870s and '80s.