An early 19th Century lacquered brass Jones-type simple microscope, unsigned, with three 'pillar' objectives, straight square faced pillar, with sliding stage and mirror brace, the sprung stage with live box and concave mirror on oval plinth base - 4½in. (11.4cm.) high; and a rare late 18th Century Withering's-pattern simple microscope, three stage circular ivory column, with tortoishell stage supported by two metal rods, in leather case - 2¾in. (6.7cm.) wide; and three ivory slides (5)