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The compound microscope is signed "J. Swift & Son. London. Patent 24960" on the base and the initial design was for Histology (the study of tissues.) The serial number "1275" is shown on Traviss-type mechanical stage. The base has four legs, with the back two on a swivel hinge so that it can collapse to fit inside the case. The draw-tube has a triple objective nose piece that revolves when needed. Coarse focusing functions via a rack and pinion mechanism that moves the body-tube closer or further from the mechanical stage. The thumbscrew on the top of the limb controls the fine focusing. The square stage measures 3.75" with engraved grid on surface. The stage has a sliding mechanism to position and secure the specimen. The sub-stage Abbe condenser has a iris diaphragm that functions via a rack & pinion vertical adjust. The dia plano-concave mirror is fixed onto a universal mount. The microscope comes with a fitted mahogany case with brass key and fittings. The interior of the case has compartments to hold the objectives and parts of the dismantled microscope.
