细节
A black enamelled and lacquered brass microscope signed W.Watson & Sons Ltd. 313 High holborn London No 55225 with rack and pinion focusing and micrometer fine focusing, tripple nosepiece, mechanical square stage, limb lock, sub-stage condenser, with rack and pinion adjustment with plano-concave mirror in case with accessories - 14½in.high; a vertical travelling microscope; and a butter refractometer signedCarl Zeiss Jena Nr.786