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Description: | wooden base with 8 holes in the top. There are three brass terminals on each side of the base and one at either end. Two wires cross over to join the middle side terminal to the end one on the other side. There is a black metal piece in the middle which acts as a switch between the outer holes. | 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: | 1930-1960 | Source: | University of Aberdeen | Identifier: | http://calms.abdn.ac.uk/Geology/dserve.e... | Go to resource |
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