Catalogue
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'Marconi' Tuning Fork, by Marconi Company, London, 20th Century
Inventory Number: 87284
Date: 20th Century
Maker Details: Signed by Marconi's Wireless Telegraph Co. Ltd.
Inscription: "'MARCONI' TUNING FORK / INST. No 378595 P.S. No / TYPE ____ MARCONI'S WIRELESS TELEGRAPH CO LTD LONDON" printed on metal plaque upon upper surface of base.
Size: 300 x 160 x 150 mm (maximum extremities)
Materials: Brass, copper, nickel, steel, iron.
Other Given Number(s): Christie's 225.
Notes:
'Marconi' Tuning Fork, with two brass-plated copper electro-magnets with adjustable steel and nickel-plated armatures flanking the arms of the sliding magnet, on grey-enamelled iron base. With four nickel-plated terminals upon long side of base marked "A1", "A2", "B1", "B2" respectively. Plating on electro-magnets partially damaged and flaking. Previously catalogued with other, similar 'Marconi' Tuning Fork Type BS10 (Inv. Num. 69685).
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