An 18th-Century Wilson-pattern brass screw-barrel microscope,
An 18th-Century Wilson-pattern brass screw-barrel microscope,

Details
An 18th-Century Wilson-pattern brass screw-barrel microscope,
unsigned, with sprung slide holder, two objectives with caps stamped 3 and 4, the third objective stamped 6, with baluster-turned ivory handle and single ivory slider with four specimens, contained in the original green plush-lined fishskin-covered case -- 3.3/8in. (8.6cm.) wide

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