Jones' Most Improved Type Microscope by Dollond, ¼ 19th C.

 

Signed: Dollond, London.
Foot radius 14, height 47 cm
Box 35 x 24 x 10 cm

 

Example of English microscope known as the "Jones' Most Improved" type. A folding tripod foot supports a tapered pillar with compass joint to the square-sectioned limb. As in the Banks, rackwork to the stage is cut in front of the limb and a plano-concave mirror is mounted on an adjustable bracket on the column. The body tube screws into the top of the bar limb and the objectives screws in underneath. An iron key tightens the compass joint at the top of the pillar.
The accessories include six objectives in a rotating disc with their numbers showing through an aperture, one objective with cap, two simple objectives with lieberkuhns attached, three-aperture swivel stage, stage-mounted lieberkuhn, cone diaphgram, brass wet cell, fish plate, ivory talk box and several ivory sliders. Also present is a stage forceps not original. The microscope packs in a mahogany box, with a sliding tray under the body tube.