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细节
Achromatic Stereoscope no. 2423
R. & J. Beck, London & New York; polished-mahogany body, with lacquered-brass fittings, hinged top, reflector, a pair of rack and pinion focusing lenses, the viewer inverting in a matching case and stowing into a mahogany table cabinet with locking panelled door, with a green tooled-leather top
R. & J. Beck, London & New York; polished-mahogany body, with lacquered-brass fittings, hinged top, reflector, a pair of rack and pinion focusing lenses, the viewer inverting in a matching case and stowing into a mahogany table cabinet with locking panelled door, with a green tooled-leather top