Short DescriptionThe Concertina Museum Ref:1.2.4-0001. An original slip-cased Harmonic Diagram
An original slip-cased Harmonic Diagram, in fine condition, and with the inked stamp of "Physical Society, London". The central rotating disc has its original ivory button and rear securing screw, and the thick board mount is engraved in the plate "C Wheatstone, Jan y 1st., 1824". Visit http://libraries.mit.edu/archives/exhibits/harmonic/ for more information on this early Wheatstone invention.
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Created August 2009 by Neil Wayne
Last Modified September 2009 by Wes Williams
This page created Monday 9 November 2009.