Compound Microscope in Case with Accessories, by Powell & Lealand, London, 1850

Designed in 1843, this microscope is an example of Powell & Lealand's 'No. 3-Smaller Microscope Stand'. The limb is underslung on trunnions and the body tube is linked to it by a pair of struts. The stage has Turrel-type mechanism operated by knurled knobs. The substage condenser has been replaced by a later model. Attached to the stage is a plaque dedicating the microscope to Robert Ceely (1797-1880), Surgeon of Aylesbury, from Revd. John Harrison, Vicar of Dinton in the County of Bucks, for his work during the Cholera epidemic of 1849. The accessories include five Lieberkühn objectives in cans, three eyepieces, a rotating disc with four apertures, a fishplate, three live boxes, four dark wells, a magnifier mounted in copper alloy, achromatic condenser, eyepiece camera lucida, three polarizing prisms, selenite disc in a tubular mount, an accessory arm, two leather rings and a copper alloy mount on wood. The case is mahogany with a box for the accessories and two case keys.