A Ross lacquered-brass compound binocular microscope, No. 4138, with Wenham's body tube, rack-and-pinion eyepiece adjustment, mounted on limb with micrometer and fine focusing screws, prism and casing, double nose-piece, main rack-and-pinion focusing, limb-lock, square mechanical stage, sub-stage condenser with rack-and-pinion adjustment, plano-concave mirror, on large twin trunnions on flat tripod foot -- 18in.(46cm.) high, in (replacement) fitted mahogany case, with various accessories including eyepieces, objectives and stage condenser in fitted mahogany case