Negretti & Zamba
Roswell's Patent Stereo-Graphoscope (Stereo Card and Photograph Viewer)
London: c. 1875
Burlwood with brass and glass fittings
9 1/2 x 16 x 4 1/2 inches, folded
Sold, please inquire as to the availability of similar items.
A Victorian parlor instrument for viewing stereo cards or photographs. The burl walnut viewer comprised of a molded rectangular plinth supporting a conforming rectangular platter adjustable at various angles on hinges; at one end a hinged panel with inset stereoscopic lenses and a hinged panel with 5-1/2 inch diameter magnifying lens, and at the other end a card holder surmounted by ornately pierced fretwork decoration. The stereoscopic lenses can be lowered to use the magnifying lens, or vice versa.
Applied Ivory Label: Negretti & Zamba, Opticians and Instrument Makers to the Queen, 15 Cornhill, London.