Items

• 

  Aloe Herstein Microscope

  The compound microscope is made from brass and japanned cast iron. The tripod base is painted black and connected to the substage mirror via a pillar. The mirror is attached via a gimbal joint that allows it to rotate to catch the light for observation. The coarse focus functions by a rack and pinion mechanism which is controlled by thumbscrews on either side of the limb. Fine focusing is controlled by a small thumb screw at the back of the body tube. The square fixed stage has a slide manipulator which holds the specimen in place.
• 

  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.
• 

  J. Swift & Sons Histological Compound Microscope

  The compound microscope is signed "J. Swift & Son. London. Patent 24960" on the base and the initial design was for Histology (the study of tissues.) The serial number "1275" is shown on Traviss-type mechanical stage. The base has four legs, with the back two on a swivel hinge so that it can collapse to fit inside the case. The draw-tube has a triple objective nose piece that revolves when needed. Coarse focusing functions via a rack and pinion mechanism that moves the body-tube closer or further from the mechanical stage. The thumbscrew on the top of the limb controls the fine focusing. The square stage measures 3.75" with engraved grid on surface. The stage has a sliding mechanism to position and secure the specimen. The sub-stage Abbe condenser has a iris diaphragm that functions via a rack & pinion vertical adjust. The dia plano-concave mirror is fixed onto a universal mount. The microscope comes with a fitted mahogany case with brass key and fittings. The interior of the case has compartments to hold the objectives and parts of the dismantled microscope.
• 

  Compound "Zentmayer" Style Microscope

  The compound microscope is made of lacquered brass and mounted on a japanned black cast iron horseshoe base. The main body tube is mounted on top of a four-inch brass pillar via a compass joint which allows the complete optical assembly to tilt over a range of 90 degrees. There is an inner sliding body tube extender which increases the body length by up to 3 inches. A removable substage condenser has an adjustable diaphragm opening (20 mm max.) The circular specimen stage is engraved "Betz Special, Chicago, Illinois" and has a substage diaphragm located underneath the stage. Many of the Betz microscope components were apparently manufactured by the Gundlach Manhattan Optical Company and some of the Betz microscopes were delivered with Zeiss lenses. The microscope comes with its original hardwood carrying case. It has an interior draw that holds the accessories. The case is secured by a brass swing hook on the side of the case and has a brass carry handle.
• 

  Bausch & Lomb Compound Microscope

  The monocular microscope has a cast iron horseshoe base. The pillar, cast as one piece, and the limb is made of iron and painted black. The brass arm supports the body-tube, which has a triple nosepiece. The coarse adjustment is by rack work, and the screw for fine adjusting is on top of the limb. Below the square stage are a swinging Abbe condenser, an iris diaphragm, and a concave substage double mirror. The microscope is signed: "Bausch & Lomb Optical Co. Rochester, N.Y." Serial number 104100 is engraved at the end of the tube. The wooden carrying box has a crack in the back of the box from top to bottom. The case has some signs of wear and tear with a lock without a key.