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4 Volt Fleming Valve, by Royal Ediswan, London, c. 1905

Inventory Number: 67148

67148-89342-1t 67148-2t 67148-89342-2t 67148-1t

Date: c. 1905

Maker Details: Signed by Royal Ediswan.

Inscription: "Royal Ediswan" printed on exterior surface of bulb.

Size: 130 mm in overall height

Materials: Teak?, glass, ebonite, metal alloy, nickel, assorted metals.

Other Given Number(s): Christie's 191.


4 Volt Fleming Valve, in polished teak? gallows mounting. With ebonite panel and metal alloy terminal upon upper surface of gallows. With two metal alloy terminals upon upper surface of base. Bulb has vertically-mounted nickel anode and other metal components. Previously catalogued with other, similar 12 Volt Fleming Valve (Inv. Num. 89342)

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