KG-006
Five keys of British origin, at the rear; from left to right:
Key marked “W.B. Nicolson Scientific Instrument Maker Glasgow”.
Morse key. Ref No. 2 N.P. Manufactured by SEL ( Signalling Equipment Ltd.).
At the front, from left to right:
Walters Electrical Mfg.
Key marked “A. Mason Belmont Surrey, Tel Sutton 348”.
A. W. Gamage Ltd. Holborn London.