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Title: Polyprism [Go to resource]
Description: Brass stand on circular brass base with adjustable arm at top holding a brass mounted 6 layered 60 degree prism. The arm can only be adjusted in the angle of the prism, not the height. 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: 1860-1890 Source: University of Aberdeen Creator: W. LADD Identifier: http://calms.abdn.ac.uk/Geology/dserve.e... Go to resource More Like this...
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