细节
THOS. HARRIS & SON, London
A lacquered-brass simple/compound microscope, with draw-tube and rack-and-pinion focusing, location limb, shaped stage and plano/concave mirror, in fitted mahogany case with mounting bracket, two brass objective sliders, six ivory and one brass specimen slider, talc box, objectives, tweezer, scalpels and maker's label Thos. Harris & Son, Opticians & Mathmetical Instrument Makers To H.R.H. The Duke of Kent, 52 Great Russel St., Bloomsbury, Opposite the British Museum, London -- 7½in.(19cm.)wide, circa 1820