A VICTORIAN LACQUERED BRASS COMPOUND BINOCULAR MICROSCOPEROSS, LONDON, THIRD QUARTER OF THE 19th CENTURYThe bifurcated tube assembly fitted with a triple objective nosepiece signed R. & J. BECK LTD beneath prism slide insert, with rack and pinion eye-piece adjustment and focus at the junction with the shaped limb and further fine micrometer screw focus wheel to the rear just above the pivot, the stage with X and Y screw subject positioning and axis tilt facility over subs stage condenser assembly incorporating adjustable oculus and rotational screw-adjustment, the underside with pivoted plano-concave mirror set on a double-jointed pivot, the whole raised via locking axis support on two column-turned uprights over a horizontal A-shaped platform engraved ROSS, LONDON, 5266 to the rear, in a mahogany box with two eyepiece lenses, prism assembly, a single eyepiece attachment, five non-original objectives and one other item.The box 44cm (17.25ins) high, 19.5cm (7.75ins) wide, 23cm (9ins) deep.Andrew Ross is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as working from various addresses in London 1830-59: 5 Albemarle St., St. John's Square, Clerkenwell (1831-2); 15 St. John's Square, Clerkenwell (1832-9); 33 Regent Circus, Piccadilly (1839-43); 21 Featherstone Buildings, Clerkenwell (1843-7); 2 Featherstone Buildings Clerkenwell (1848-53) and 2-3 Featherstone Buildings, Holborn (1854-59). Ross was a founder member of the Microscopical Society of London; he died in 1859 and was succeeded by Thomas Ross.