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Description: | 14 brass terminals around the edge of a cylindrical turquoise metal instrument. It has a orange plastic top and a large metal knob which can be turned to direct or reverse. It has "H TINSLEY & CO LTD London SE25 NO 106950 THERMO ELECTRIC FREE TYPE 4092" engraved in white | 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: | 1904-1970 | Source: | University of Aberdeen | Creator: | H TINSLEY AND CO | Identifier: | http://calms.abdn.ac.uk/Geology/dserve.e... | Go to resource |
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