Compound and Simple Microscope with Accessories and Case, by Shuttleworth, London, c. 1775-1800

This copper alloy instrument has a pillar, with a triangular section, that stands on a compass joint on a flat, folding tripod foot. The cruciform stage has three pinholes, one of which is square, and a recessed stage hole. It is racked up and down on the pillar for coarse focusing. A screw below the stage moves it for fine focusing. A ring on two pins is set on the stage to hold specimens. The body screws into the end of an arm that slides into a pivoting bracket at the top of the stand. This gives the body aquatic movement. Objective lenses, or a rotating disc with six objectives, screw into the underside of the arm. A sliding sleeve below the stage holds a bracket for a condensing lens and a lower sleeve holds the Plano-concave mirror in a horseshoe mount. The accessories comprise an objective disc, an objective in a can, a Nicol prism analyser, a Nicol prism set in cork with a copper alloy housing, two objectives with domed dust covers and a third domed dust cover, three Lieberkuhn and a Lieberkühn carrier on a square sectioned pin, a fishplate, a live box, a cone condenser, copper alloy forceps, stage forceps, a super stage bull's-eye lens on a copper alloy pin, a stage with three holes, a wet cell, an ivory talc box, three glass phials and a condenser lens that has detached from its bracket. The fitted case is mahogany.