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R & J BECK, SECOND HALF 19TH CENTURY
细节
A Beck Popular microscope
R & J Beck, second half 19th century
No. 7714, with lacquered-brass binocular body-tube, dividing eyepieces, rack-and-pinion and fine focusing, circular stage and plano/concave mirror, on adjustable triangular base, accessories in fitted mahogany case.
16in. (40cm.) wide in case
R & J Beck, second half 19th century
No. 7714, with lacquered-brass binocular body-tube, dividing eyepieces, rack-and-pinion and fine focusing, circular stage and plano/concave mirror, on adjustable triangular base, accessories in fitted mahogany case.
16in. (40cm.) wide in case