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Description is exactly The brass compound microscope has a blackened claw-foot base. The base is connected to a pillar via an inclination joint. The large thumbscrews on either side of the stage controls the coarse focusing by rack and pinion via a triangular column. The square stage has a substage circular iris diaphragm as well as stage forceps that connect via a pin to the stage. The stage has a swirl patina as well as a small shelf to hold specimens in place. The microscope has fine focusing controlled by a small thumbscrew at the bottom of the body tube. The substage mirror is plano-concave and connected to the pillar by a gimbal. The base is signed "W. JOHNSON. 188 Tottenham Court Rd. Optician to the London University Hospital 570."
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