拍品 140
140
A fine lacquered brass monocular microscope, signed Powell & Lealand London, with internal rack and pinion focusing, side fine focusing screw, square mechanical stage, part sub-stage condenser, plano-concave mirror, in fitted mahogany case with accessories and trade label inscribed Powell & Lealand Opticians 4 Seymour Place Euston Square New Road Opposite St. Pancras Church.

細節
A fine lacquered brass monocular microscope, signed Powell & Lealand London, with internal rack and pinion focusing, side fine focusing screw, square mechanical stage, part sub-stage condenser, plano-concave mirror, in fitted mahogany case with accessories and trade label inscribed Powell & Lealand Opticians 4 Seymour Place Euston Square New Road Opposite St. Pancras Church.