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Marconi Crystal Receiver Type 31C, by Marconi Company, London, 1910

Inventory Number: 67687

47154-67687-2t 47154-67687-1t 67687-1t 67687-2t


Date: 1910

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

Inscription: "TYPE No 31C / MARCONI'S WIRELESS / TELEGRAPH CO. LTD. / NO 222201 LONDON" etched on ebonite surface.

Size: 340 x 170 x 160 mm (height excluding switches)

Materials: Ebonite, brass, mahogany?, bakelite.

Other Given Number(s): Christie's 43, Science Museum Loan 1960-259.


Notes:

Marconi Crystal Receiver Type 31C, with lacquered brass fittings on ebonite surface in mahogany? case. With on/off switches for two crystals, battery and jigger, terminals for battery, telephone and assorted parts, and sliding switches for two crystals. With sliding control at side for control of primary jigger winding. Previously associated and catalogued with Marconi Aerial Tuning Inductance Coil (Inv. Num. 47154).


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