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Brass binocular microscope by Crouch– circa 1879

An elegant example of the Wenham binocular style. With a brass curved English base, Webster condenser, and circular mechanical stage, it presents a large and impressive profile of a Grand Victorian binocular microscope. Signed on the base, "Henry Crouch, London, 1754", it measures 16 " tall when closed, and dates to circa 1879. A similar instrument is in the Billings collection as number 264. Coarse focus is rack and pinion, fine focus with a micrometer nosepiece knob. Eyepiece separation is also rack and pinion, as is the mechanical stage and Webster condenser. All rack work is in excellent operation condition. The 2 " diameter plano-concave mirror is in very good condition with minimal age spotting on both sides. The condenser is a Webster type with a wheel of shapes and a variable iris diaphragm. The wheel contains a variety of shapes and center spots to produce everything from dark field to oblique illumination. The condenser had two centering knobs. The double nosepiece accommodates two lenses, a Crouch 2" and a James Smith 8/10". Both give true binocular vision with the Wenham prism. One set of binocular eyepieces completes the optical system. The microscope is finished in a coppery lacquered brass with complete coverage and typical wear overall. A hand dove-tailed mahogany case houses the microscope. It has an unusual slanted back and is in very good usable condition. The microscope makes a very impressive display with its large scale, Webster condenser, mechanical stage, and copper toned lacquer finish.

Item 1266

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