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Description: | Wooden box with a screen on the front which has a scale ranging from 5 to 0 to 5. At the back there are 2 brass terminals and three silver ones. There is also a black box with 4 smaller terminals beside it and two very small ones on it. There is a plug wired up to two of the terminals. On the back there is also a plaque with the words. Inside the box there is a mirror attached to the top and a slide underneath that. There is a black plastic terminal attached to a magnet and a white plastic chime transformer. There are also several wires. Envelope inside contains manufacturer specifications and instructions for use. | 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: | 1950-1970 | Source: | University of Aberdeen | Creator: | H. TINSLEY & CO | Identifier: | http://calms.abdn.ac.uk/Geology/dserve.e... | Go to resource |
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