拍品 142
142
A lacquered brass 'No.1' monocular microscope signed POWELL & LEALAND 170 EUSTON ROAD, LONDON, 1877, with Wenham binocular body tube attachment, prism cover, micrometer focusing, concentric rotating stage civided 0o - 180o - 0o, mechanical sub-stage, plano- concave mirror on swivel arm and sliding collar, on tripod foot, with bulls-eye condenser on stand, camera lucida on stand, a case of accessories including two cased Wenhams prisms, substage polariser, three illuminators, plug style achromatic condensor with wheel of stops, objectives, eyepieces, two lieberkuhns, cased selector and stage, extraneous light diaphragm, stage forceps, double nosepiece and other items in case with trade - 19¼in.(49cm)high

细节
A lacquered brass 'No.1' monocular microscope signed POWELL & LEALAND 170 EUSTON ROAD, LONDON, 1877, with Wenham binocular body tube attachment, prism cover, micrometer focusing, concentric rotating stage civided 0o - 180o - 0o, mechanical sub-stage, plano- concave mirror on swivel arm and sliding collar, on tripod foot, with bulls-eye condenser on stand, camera lucida on stand, a case of accessories including two cased Wenhams prisms, substage polariser, three illuminators, plug style achromatic condensor with wheel of stops, objectives, eyepieces, two lieberkuhns, cased selector and stage, extraneous light diaphragm, stage forceps, double nosepiece and other items in case with trade - 19¼in.(49cm)high

拍品专文

Powell and Lealand entered partnership in 1842 they moved to 170 Euston Road where they remained until 1905. The label records the microscope being sold to Revd Canon Fletcher London Nov 23 1894, bought of Charles Baker 244 High Holborn 'No1' Powell and Lealand for the sum of #70