細節
A late 19th-Century lacquered-brass compound monocular microscope,
by R. & J. Beck, No. 19187, with rack and pinion coarse focusing, fine adjustment, double nose-piece, sub-stage condenser and plano-concave mirror, with accessories, in fitted mahogany case with brass carrying handle -- 11¾in. (29.8cm.) high
See Illustration
by R. & J. Beck, No. 19187, with rack and pinion coarse focusing, fine adjustment, double nose-piece, sub-stage condenser and plano-concave mirror, with accessories, in fitted mahogany case with brass carrying handle -- 11¾in. (29.8cm.) high
See Illustration