Simple Microscope, by W. & S. Jones, c. 1800

Simple microscope by W & S Jones. Contains 5 Bone sliders. Accessories also include a square copper alloy pillar with clamp and fine screw focus in the Cuff manner, three objective lenses, all on a swing arm, to be used singly or together, a plano-concave mirror, a high powered objective, an ebony base, a key-shaped pin, a threaded objective with a screw cap, and a copper alloy and Steel accessory arm that could connect the high powered objective to the swing arm. All of these items are stored in a fish skin-covered hinged case with copper alloy swing clasps and lined with green velvet. There is a piece of card with gold paper on one side with "Sir Ben Brodie's Pocket Microscope" written on it.