English c. 1798, signed to the foot ‘W & S JONES 30 Holborn London’, with folding tripod foot, central boss supporting tall column with compass-type joint at the top, plano-concave mirror in gimbal at base, sliding condenser on swing out arm below stage, stage incorporates rack and pinion focusing, stage with unusual fine adjustment via gear and screw, limb with mechanical aquatic movement, case with accessories including stage bulls-eye condenser, cone diaphragm, live box, leiberkuhn, 4 objectives, swing out stage, various sliders, in original case (missing body tube), case width 34cm.