"Large Best" or No. 1 Binocular Microscope by Smith, Beck & Beck, 31 Cornhill, London, c. 1864, No. 4146, with rack and pinion coarse focus, micrometer fine focus on the single nosepiece, mechanical stage with X and Y adjustments, rack and pinion focus of sub stage accessories, calibrated draw tube for function as a monocular, supported by double pillars on a tripod base marked with maker's name, location and number as above, all in a mahogany box with many accessories, box lg. 19 x wd. 9 1/2 x ht. 5 in.
"Large Best" or No. 1 Binocular Microscope by Smith, Beck & Beck, 31 Cornhill, London, c. 1864, No. 4146, with rack and pinion coarse focus, micrometer fine focus on the single nosepiece, mechanical stage with X and Y adjustments, rack and pinion focus of sub stage accessories, calibrated draw tube for function as a monocular, supported by double pillars on a tripod base marked with maker's name, location and number as above, all in a mahogany box with many accessories, box lg. 19 x wd. 9 1/2 x ht. 5 in.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
