Item Type: Wheatstone Harmonic Diagram
Full Description: An original slip-cased Wheatstone Harmonic Diagram of 1824, in fine condition, and with the inked labels of "State University of Iowa Libraries, MTI-5. W56" 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". The rear of the card mount bears the Iowa Library label, and an acquisition number 418855. The original slip-case is open down each side due to slight wear. Visit http://libraries.mit.edu/archives/exhibits/harmonic/ for more information on this early Wheatstone invention - The Collection has another fine example of an original Harmonic Diagram, once in the archives of the "Physical Society, London" as Item NC.1.2.4-001
Source Catalogue No: The Concertina Museum: 1.2.4-004
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Created August 2009 by Neil Wayne
Last Modified 07 February 2012 by Neil Wayne, Chris Flint, Wes Williams
This page created Tuesday 14 February 2012.