English, 2/4 19th century, engraved along the foot in copperplate script 'CARPENTERS Improved Compound Microscope for Opake & transparent Objects 24 regent St London' the microscope on a large flat folding tripod base, with squat turned brass pillar supporting the body on a compass type joint, plano-concave mirror on a 'S' shaped support, large square stage with condenser lens, sprung support for large slides, with Bonnani-type stage above, with large compound body tube incorporating an early achromatic objective with compound eyepiece, body tube with internal sleave with rack and pinion focusing, with adjustable support between the foot and top of the body tube, height (inclined) 45cm

Footnote:Philip Carpenter moved to Regent street in 1826, after his death in 1833 his sister continued to trade from the same address. the name changed in 1837 to Carpenter & Westly