Van Heurck compound monocular microscope
W Watson & Sons (estab. 1837, closed 1969)
Microscope with rack and pinion coarse focus adjustment and screw fine adjustment, square revolving stage with mechanical attachment and condenser, revolving triple nosepiece, pack and pinion drive on the draw tube. Serial number 4812.
The microscope was used by Samuel Connor M.B. (Queen's University, Ireland, 1881).
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specifications/maker's mark ▫ marked: '1 in 0.21 N.A. W. WATSON & SONS. LONDON' ▫ objective lens