细节
A black-enamelled and chromium-plated brass compound binocular microscope,
by W. Watson & Sons LTD, 313 High Holborn, London,, No. 99032, with 'High Power Binocular' attachment, 'Bactil' monocular body-tube, rack and pinion coarse and micrometer fine focusing, quadruple nose-piece, mechanical stage, sub-stage condenser, twelve various eyepieces and other accessories, in fitted mahogany case 18¾in. (47.6cm.) high
See Illustration
by W. Watson & Sons LTD, 313 High Holborn, London,, No. 99032, with 'High Power Binocular' attachment, 'Bactil' monocular body-tube, rack and pinion coarse and micrometer fine focusing, quadruple nose-piece, mechanical stage, sub-stage condenser, twelve various eyepieces and other accessories, in fitted mahogany case 18¾in. (47.6cm.) high
See Illustration