Items

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  Baker Objective Canister

  The brass canister has a screw top which has the "1/4in Baker London" etched in a cursive font. The canister would be used to hold an objective lens which would be screwed into the lid and then screwed into the canister. The canister also has "1/4" etched into the bottom.
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  Charles Baker Microscope

  The compound microscope is signed "C. Baker, 244 High Holborn, London, D.P.H.6233" and supported by a tripod base. Designed in the popular design known as "Jug handle," the brass is partly enameled, blackened and lacquered. The substage assembly consists of a slide-in condenser with iris and filter and a centering receptacle moves up and down on a dovetail by rack and pinion. The substage plano-concave mirror is connected via a gimbal and pin which allows it to rotate to catch the light for observation. The triple objective nose piece has three objectives fitted onto a circular joint to allow for rotation when using the microscope. Coarse focusing functions via a rack and pinion mechanism while fine focus is controlled by the small thumbscrew located at the end of the body tube. The finger jointed wooden case is original and marked with the serial number corresponding to the instrument.
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  Charles Baker Polarizing Microscope

  The compound microscope has a double nose-piece which holds two objectives that can be rotated when needed. The monocular microscope is made from brass and japanned black cast iron. The horseshoe-shaped base and limb are japanned and connected via a trunnion joint that allows the microscope to be angled for observation. The coarse focus functions via a rack and pinion mechanism which is operated by a thumbscrew on the side of the microscope. Fine focus is controlled by the thumbscrew on the side of the pillar. The circular stage is fixed with stage clips that secure the specimen for observation. The outside of the stage has markings of measurement that range from 10 to 360. Beneath the stage is a polarizer which can be adjusted by rotating it. The microscope comes with a wooden, fitted case with compartments to secure the microscope. The case is secured via a lock on the door.
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  Charles Baker Compound Microscope

  The compound microscope is made from lacquered brass. The microscope is supported by a straight-legged tripod with the substage double-sided mirror connected to the pillar in between the legs of the tripod. The substage plano-concave mirror is secured to a gimbal support which allows for adjustment to catch the light. The circular stage can be rotated and has two brass spring clips which hold the specimen in place for observation. There is also an Abbe substage condenser which has an adjustable iris diaphragm which can be altered with a lever along its side. The coarse focusing functions via a rack and pinion mechanism which moves the body-tube closer or further away from the fixed stage. The fine focusing mechanism is controlled by a thumbscrew located at the top of the pillar. The pillar has the words "Baker, 244 High Holborn, London." etched into the brass. The microscope comes with its original mahogany case and has interior compartments for the accessories and separate bullseye condenser. The case has a brass carry handle located on its top and the lock is still fitted; however, a key did not come with the microscope.
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  Charles Baker "Ross Type" Microscope

  The Charles Baker compound microscope comes with the original mahogany case. The brass microscope can be dissembled to fit into the case. The body tube and arm are secured via a thumbscrew to the mahogany platform which is fixed to the claw-footed base of the microscope. The lacquered brass foot has "BAKER, 244 High Holborn, LONDON" carved into it. The body tube and arm can then be attached via a screw to the pillar of the microscope. The fixed square stage is attached to the pillar and has a square fixture that can be horizontal to adjust the specimen. There is a substage revolving diaphragms that can be removed via a sliding mechanism. Coarse focusing functions via a rack and pinion mechanism and fine focusing is operated via thumbscrew found on the arm. The substage, one-sided mirror is permanently attached to the pillar of the microscope via a gimbal. The mahogany case is farcened with a brass lock which is no longer present on the case with the escutcheon missing. The wooden fitting that would originally have held the two objectives in the case is half missing and so the accessories are now being held in the draw located at the bottom of the case. The draw has a brass pull loop to open and close it. The case also has a brass handle at the top that is used to carry the case.
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  Charles Baker Compound Microscope

  The brass, compound microscope was designed by the Ross pattern with a Y-shaped foot screwed to a mahogany board which slides into the case. The stand is the Baker #2 stand advertised in 1862. The coarse focusing is operated by rack work and fine focusing by thumb-wheel on the nose-piece. The circular stage has a centering bar that slides along the stage for positioning the specimen. Below the stage is an adjustable Abbe condenser that moves with its own rack work and adjusting thumb screws. The condenser has a slide out holder for filters and the substage mirror is concave and one sided. The microscope has three eye-pieces of different magnification and is signed on the foot "Baker, 244 High Holborn, London." The mahogany case is fitted and has compartments to hold the objectives and slides.