Images from the Everist Gallery
        NMM 5918.  Electric pedal steel guitar by Gibson, Inc., Kalamazoo, 1941.
Electraharp model.  Factory Order Number E4141-6.
Board of Trustees, 1995.           
Electraharp model. Factory Order Number E4141-6.
Board of Trustees, 1995.
  Click on any mechanical feature above to see a larger view  
The Gibson Electraharp pedal mechanism was developed to allow quick  tuning changes between songs and allowed the player to raise or lower  the pitch separately on individual strings.  The sumptuous figured maple  and walnut case hid the pedals and the player's feet behind an elegant  Art Deco façade.  According to Gibson's 1942 catalog, the instrument  took five years to develop and "not until every detail had been  perfected was a working model shown."  The Electraharp had been  developed jointly by a Gibson machinist, John Moore, and Alvino Rey, a  well-known Gibson endorser.  The Electraharp was Gibson's most expensive  product in 1942, when it was sold for $477—$111.50 more than the most  deluxe Super 400 arch-top guitar.  Gibson records indicate that thirteen  of the instruments were shipped before World War II and a dispute with  the Harlin Brothers of Indianapolis, who held the patent on a similar  design, the Multi-Kord, caused Gibson to cease production.  The  Electraharp was reintroduced after World War II mounted on steel legs,  rather than built into a wooden cabinet, and with only four pedals.  In  1949 it sold for a significantly reduced $395. 
Lap Steel Guitar Viewed from Above
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Lap Steel Guitar Pedal Mechanism Viewed from Below
Click on pedals to see an enlargement
Additional Views of Pitch-Changing and Pedal Mechanisms
Click on thumbnails below to see larger images
source: http://orgs.usd.edu/nmm/
 
