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Description: | A: 4 lantern slides of magnified material. In box - box lid reads "Slides food"; notepaper inside box reads "The Illuminating Engineering Society". B: Wooden block printing plate. English towns marked onto concentric circle diagram, with Sutton at centre. C: Maroon lantern slide cardboard box. Label reads "Coloured Photographs of Spectra". Contains one colour photograph of spectra. D:Certificate/ instructions for use for a Coil. Issued by RW Paul, Electrical Standard Testing & Measuring Instruments. For Standard Coil no 32. Certificate No 421, dating from 3rd August 1894. | Format: | text/html | License: | http://creativecommons.org/licenses/by-nc-sa/3.0/ | Rights holder: | University College London | Subjects: | Electrical engineering Electronic engineering | Source: | UCL Museums | Identifier: | http://www.ucl.ac.uk/museums/objects/LDU... | Language: | en-GB | Format: | text/html | Go to resource |
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