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W. Watson and Sons Compound Monocular

This highly adjustable microscope is called the Grand Model and is signed "W. Watson & Sons, 313 High Holborn, London, 7915". The model featured below was redrawn from photographs of the original microscope, which is part of the Billings microscope collection at Walter Reed Army Hospital in Washington DC.

Many improvements were made to the microscope design between the time of its introduction in 1895 and the time this model was produced in 1904. The tripod base has a spread of nine inches with each leg set onto a one-inch diameter foot. There are multiple stage, condenser, and rack adjustments for fine-tuning the microscope. The upper section of the microscope is cut away to form two supports connected by a lever-controlled compass joint. The cutaway has two milled-head graduated fine adjustments. The stage is equipped with a mechanical translation device and a complete substage condenser assembly. Three objectives ride in a revolving nosepiece, and the focus adjustments (coarse and fine) are made with rack gearsets.

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