Three tuning forks, in leather case, marked respectively:- "C518 Continental, John Brinsmead & Sons, London"; "C550 Society of Arts, John Brinsmead & Sons, London"; "C540 Philharmonic, John Brinsmead & Sons, London".
Three tuning forks, in leather case, marked respectively:- "C518 Continental, John Brinsmead & Sons, London"; "C550 Society of Arts, John Brinsmead & Sons, London"; "C540 Philharmonic, John Brinsmead & Sons, London".