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CARL ZEISS, Jena
A lacquered-brass and black-enamelled petrological microscope, No. 81170, with rack-and-pinion and fine focusing, double-nosepiece, circular, mechanical stage, sub-stage condenser, jug-handle and plano/concave mirror, on U-shaped foot -- 11 in.(28cm.) high, with accessories in fitted mahogany case
A lacquered-brass and black-enamelled petrological microscope, No. 81170, with rack-and-pinion and fine focusing, double-nosepiece, circular, mechanical stage, sub-stage condenser, jug-handle and plano/concave mirror, on U-shaped foot -- 11 in.(28cm.) high, with accessories in fitted mahogany case