A lacquered brass binocular microscope, signed R.& J. BECK 31 CORNHILL LONDON, the binocular body tube with eyepiece rack-and-pinion focusing, nose-piece micrometer fine focusing screw, prism, single nose-piece, limb-mounted main rack-and-pinion focusing, stage accessory mount, mechanical circular stage, vertically divided 50-250°, sub-stage condenser on rack-and-pinion adjustment, plano-concave mirror on swing-arm with sliding collar, on circular disc base mounted on folding flat tripod legs, with accessories including three eyepieces, stage forceps, stage bull's eye condenser, three objectives, in fitted mahogany case c.1865-80 - 18in. wide