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ACHROMATIC STEREOSCOPE NO. 290
R. & J. BECK, LONDON; MAHOGANY-BODY, WITH A PAIR OF VIEWING LENSES, IN MAKER'S FITTED WOOD CASE (LACKS FRONT PANEL) AND A QUANTITY OF CARDS AND 45 X 107MM. STEREO POSITIVES
R. & J. BECK, LONDON; MAHOGANY-BODY, WITH A PAIR OF VIEWING LENSES, IN MAKER'S FITTED WOOD CASE (LACKS FRONT PANEL) AND A QUANTITY OF CARDS AND 45 X 107MM. STEREO POSITIVES