Negretti & Zambra Graphascope
Negretti & Zambra Graphascope.
Very large (58 x 29 cm) and magnificent graphoscope, apparatus for viewing stereo and mono photos. Label for "Negretti & Zambra, opticians to the queen, 122 regent street, London". The large viewing lens is claimed to give the effect of perspective at the same time as magnifying standard images. Turned wood with ivory and brass, all in perfect condition.