Measures approximately 15" high and extends to 22" high. A small brass plaque indicates the manufacturer; "Murray & Heath, Instrument Maker to the Queen, 43 Piccadilly, London." There is no mention of a patent number which would indicate this is a very early version of this instrument. Later models have the patent date of 1857 usually on an ivory plaque rather than brass. Refer, Wing page 11 for more information on Murray & Heath viewers.
