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Title: Tungsten filament lamp with cord operated bright/dim switch [Go to resource]
Description: Tungsten filament lamp with cord operated bright/dim switch in cap Inscribed 'Mazda' on bulb and '230 V 25 W-NB' on cap. Bayonet cap License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1981-1313 Go to resource More Like this...
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