A fine 19th-Century lacquered-brass compound monocular microscope, signed on the tripod stand R & J BECK LONDON & PHILADELPHIA NO. 11773 , with rack and pinion coarse and micrometer fine focusing, triple nose-piece, sub-stage condenser, plano-concave mirror, with accessories, including a 1/10th oil immersion objective, in mahogany case with brass carrying handle -- 13¼in. (33.6cm.) high See Colour Plate 1
A fine 19th-Century lacquered-brass compound monocular microscope, signed on the tripod stand R & J BECK LONDON & PHILADELPHIA NO. 11773 , with rack and pinion coarse and micrometer fine focusing, triple nose-piece, sub-stage condenser, plano-concave mirror, with accessories, including a 1/10th oil immersion objective, in mahogany case with brass carrying handle -- 13¼in. (33.6cm.) high See Colour Plate 1
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
