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Variometer, by Marconi Company, London, c. 1920

Inventory Number: 96466

96466-3t 96466-2t 96466-1t

Date: c. 1920

Maker Details: Signed by Marconi's Wireless Telegraph Co. Ltd.

Inscription: "MARCONI'S WIRELESS / TELEGRAPH CO LTD / No 199272 LONDON" printed on brass plaque upon upper surface of baseboard. See Documents for other inscriptions.

Size: 240 x 250 x 275 mm (maximum extremities)

Materials: Ebonite, rope, porcelain, mahogany, brass, bakelite.

Other Given Number(s): Christie's 65.


Variometer, with ebonite frame, cylindrical swivelling core in horizontal rope-bound coil on four porcelain insulators, on mahogany baseboard. With two brass terminals, and a brass 180-degree scale with brass needle and bakelite dial upon ebonite sidebar. Insulators restored.

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