Hand-held Stereopticon & Stereo-viewer

It was first introduced by Sir Douglas Wheatstone in 1838 and was further developed by Oliver Wendell Holmes as the "Holmes Stereo-viewer", to whom the construction of this specific artifact is credited. It was a particular success during the years 1881-1939, when then its manufacture was discontinued. It was the precursor of the renowned 'view master' of the following generations. The artifact belongs to the period 1910-20. Operation: two pictures, one next to the other, photographed from similar angles of view, are placed in front of a set of lenses. The user/viewer has a feeling of ‘three-dimensionality’ and an illusion of depth. It is accompanied by 2 photographs; on one of which is recorded: KEYSTONE VIEW COMPANY MANUFACTURERS, COPYRIGHT 1909 BY KEYSTONE VIEW CO, MADE IN USA.
  • Date of Manufacture 1910-20
  • Country of Manufacture U.S.A.
 Exist 3 photos of the object



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