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細節
An 18th-Century brass compass microscope,
unsigned, with finely baluster-turned ivory handle, sprung focusing, four objectives, each with lieberkuhn, tweezers, specimen forceps, holders, butterfly handle accessory, drum-shaped ivory mica disc box, contained in the original green plush-lined fishskin-covered case with two brass hooks and eyes -- 5in. (13.3cm.) wide
See Colour Illustration
unsigned, with finely baluster-turned ivory handle, sprung focusing, four objectives, each with lieberkuhn, tweezers, specimen forceps, holders, butterfly handle accessory, drum-shaped ivory mica disc box, contained in the original green plush-lined fishskin-covered case with two brass hooks and eyes -- 5in. (13.3cm.) wide
See Colour Illustration