A lacquered brass portable binocular microscope, signed R.& J. BECK LONDON 12169, with rack-and-pinion eyepiece adjustment, main limb rack-and-pinion focusing and micrometer fine focusing screw, prism, circular stage with live box aperture, the sub-stage condenser and plorizer with rack and pinion adjustment, plano-concave mirror on slide fitting, on folding raised tripod stand - 11in.(28cm.)wide