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Large Iolanda Transformer With Case, Early 20th Century

Inventory Number: 57720

Date: Early 20th Century

Maker Details: Unknown

Inscription: "KEEP FULL / 300 FLASH / INSULATING OIL" printed on brass plaque upon upper surface of case.

Size: 470 mm (width) x 605 mm (length) x 300 mm (height) [maximum dimensions]

Materials: Mahogany, metal alloy, brass, copper, wood.

Other Given Number(s): Science Museum Loan 1959-216.


Large Iolanda Transformer in varnished mahogany case. With black-painted steel handles and metal alloy & brass terminals upon case surface. With some terminals also connected with copper wires, others are connected with insulated metal connectors (see Inv. Num. 79425). With light-coloured circular wooden knob (possibly maple or sycamore) upon upper surface of case. Missing additional copper linking roods shown in original Science Museum photograph (1959). Case slightly damaged and well-used. On display, and currently used, with Assorted Copper Busbars And Ebonite Insulators (Inv. Num. 79425).

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