Four-Second Alarm Type KM1, by Marconi Company, London, 20th Century
Inventory Number: 13115
Date: 20th Century
Maker Details: Signed by Marconi's Wireless Telegraph Co. Ltd.
Inscription: "...MARCONI'S WIRELESS / TELEGRAPH CO. LTD. / LONDON" printed on iron plaque on front exterior surface. See Documents for other inscriptions.
Size: 300 x 290 x 220 mm
Materials: Iron, metal, nickel, glass.
Other Given Number(s): Christie's 105.
Four-Second Alarm Type KM1, in black and nickelled iron case with glazed upper surface. With iron plaque which indicates two buttons under screw-top caps on front. Three plugs for dash, signal and space relays on front. With partially damaged glazed top (on corner).