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Description: | One of two light bulbs with relatively large brass screw-cap bottom. Bulb is spherical in shape with metal filament inside. Stamped in brass, 'Royal "Ediswan" Gas filled, Made in England, 6V 30W H59 F/23'. Accompanied by box which reads, 'Royal "Ediswan" Projector Lamp' | License: | http://www.abdn.ac.uk/historic/Copyright_terms_conditions.shtml | Publisher: | ABDNP University of Aberdeen, Natural Philosophy Collection of Historical Scientific Instruments | Rights holder: | 47718 | Temporal: | 1960-1970 | Source: | University of Aberdeen | Creator: | The Edison Swan Electric Co. Ltd. (Member of the A.E.I. Group of Companies) | Identifier: | http://calms.abdn.ac.uk/Geology/dserve.e... | Go to resource |
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