Details
Stereo-viewers
comprising a walnut-veneered stereo-graphoscope, mounted on a stand, a Holmes-pattern stereo-viewer, two Spiralgraph rackwork slides, a box glass negatives, a home-made model of Wheatstone's reflecting stereoscope of 1852
comprising a walnut-veneered stereo-graphoscope, mounted on a stand, a Holmes-pattern stereo-viewer, two Spiralgraph rackwork slides, a box glass negatives, a home-made model of Wheatstone's reflecting stereoscope of 1852