Catalogue
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Magnetic Detector, by Marconi Company, London, Early 20th Century
Inventory Number: 18289
Date: Early 20th Century
Maker Details: Signed by Marconi's Wireless Telegraph Co. Ltd.
Inscription: "MARCONI'S WIRELESS / TELEGRAPH CO. LTD. / NO 32401 LONDON" printed on brass plaque upon upper surface.
Size: 480 x 130 x 210 mm (base only)
Materials: Mahogany, glass, brass, ebonite, bakelite, iron.
Other Given Number(s): Christie's 99.
Notes:
Magnetic Detector, with screw tension adjustment, iron winding key and mahogany base with removable glass-topped lid. With four brass terminals mounted on ebonite blocks, on each side. Terminals are marked E, T, T, A (Earth, Aerial) on each side. Wooden block mounted on top on case with two magnets on each side and brass plaque. Lacking wire band, one ebonite terminal block cracked and glass on lid damaged.
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