A GOULD-TYPE LACQUERED BRASS PORTABLEPOUND MICROSCOPECARPENTER, LONDON, SECOND QUARTER OF THE 19th CENTURYThe part-tapered tube screw-fitting at the objective end into a threaded collar positioned at the top of a square section upright cut with teeth for the rack and pinion up/down adjtment of the stage and signed Carpenter 24 Regent St. London, the platform fitted with sprung brass object retaining plate with pivoted plano-concave mirror applied beneath, the whole mounted via a threaded recessed collar onto the lid of the fitted mahogany box containing accessories including forceps, four objectives, three bone sliders, glazed specimen dish and condenser lens.28.5cm (11.25ins) high assembled; the box 16.5cm (6.5ins) wide, 11.5cm (4.5ins) deep.Philip Carpenter is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as working from Inge Street then Bath Row, Birmingham 1808-22 before moving to London and setting up at 'The Microcosm' at 24 Regent Street in 1826 where he continued selling microscopes, Kaleidoscopes and related instruments (which were made at his workshops in Birmingham) until his death in 1833. He was succeeded by his wife, Mary who continued until 1837.The design of the current lot was devised by William Cary during the early 1820's and was subsequently published by his former apprentice, Charles Gould, in his 1827 publication THEPANION TO THE MICROSCOPE.