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Lot 143:
Description
A Victorian brass drum microscope featuring a cylindrical pillar design with a draw-tube for focusing and a reflective circular mirror at the base for illumination. The instrument is accompanied by a large brass-rimmed biconvex magnifying lens and a pair of brass tweezers. The set is housed in a mahogany case with internal dividers, brass hinges, and twin hook-and-eye latches. The interior contains ephemeral materials including a green paper packet and paper-wrapped components; one fragment shows printed text reading in part derwood and rd St. The microscope stands on a weighted circular base with a cutaway stage.
Height: 18 cm
Lens diameter: 7.5 cm.
Condition report:
The brass surfaces show age-related patina, tarnishing, and surface oxidation throughout, with visible spotting on the microscope stage (photo 2). The large magnifying lens exhibits surface scratches and dust (photo 3). The base mirror shows silvering loss and desilverization around the edges (photo 2). The mahogany case is intact but displays surface wear and scratches to the finish (photo 1).
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