细节
A black-enamel and satin-chrome compound binocular microscope,
by Carl Zeiss No. 224603, with rack and pinion coarse and micrometer fine focusing quadruple nose-piece, circular stage and sub-stage condenser, with four objectives and six eyepieces in carrying case 15in. (38.1cm.) high
by Carl Zeiss No. 224603, with rack and pinion coarse and micrometer fine focusing quadruple nose-piece, circular stage and sub-stage condenser, with four objectives and six eyepieces in carrying case 15in. (38.1cm.) high