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Title: Reference Square [Go to resource]
Description: Metal cylinder with three threaded inline holes at either end. Comes with felt-lined wooden storage box. Plate on lid inside reads "Reference Square 80 mm ? x 200 mm" 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: 1965-1975 Source: University of Aberdeen Identifier: http://calms.abdn.ac.uk/Geology/dserve.e... Go to resource More Like this...
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