All the types of filing cabinets shown below were produced in wood.
#Yawman erbe manufacturing rochester ny license#
The storage cases for these two microscope are identical as are the storage cases for some other Gundlach and Yawman & Erbe microscopes in this collection ( look here and here ).Īrgus dcf license key. As indicated in the two separate advertisements shown above both firms sold the same model microscopes and as illustrated with the microscope shown on the left above, some instruments actually bear dual signatures. The early history of the Yawman & Erbe firm has been documented. While the furniture produced by the firm is now rather common, the microscopes are far less so. Yawman & Erbe primarily were involved in the manufacture of office furniture and manufactured microscopes for only a very brief period in the early 1880's.
It is clear that it was Gundlach who produced the optics, but it is less clear which firm actually manufactured the stands. The stand is thirteen inches or more in height, when arranged for use, and is equipped with a one inch eye-piece, a 2/3 and one inch objective, giving magnifylng powers of 99 and 154 diameters.Īfter the termination of his employment by Bausch & Lomb in 1878, Ernst Gundlach, for a brief period, worked with Philip Yawman and Gustav Erbe (also former employees of Bausch & Lomb) in the production of microscopes. The edge and under-side of the stage are dead black, while the upper surface is polished. The sliding part of the body, the mirror-bar, and the mirror-arm are nickle-plated. The stand has a large tube, but its proportions are not displeasing. It carries plane and concave mirrors, the latter being two Inches in diameter, and at the proper distance from the object in any position.
The mirror-bar swings above the stage to any desired position, and it is graduated into five-degree spaces. The stage is so constructed that it may be removed, and a glass stage with slide carrier put on in Its place. The ring is slotted for oblique illumination. It has removable spring clips, and, as a part of it, a sub-stage ring of standard size to receive accessories, fitting into which there is a revolving diaphragm. The stage is of brass, circular, and it allows the greatest obliquity of light. The pillar has an Inclination joint which permits the body to come nearly to a horizontal position. The latter is worked by a milled head on top of the pillar. The stand has a good rack and pinion, and micrometer screw adjustment. The foot, pillar and arm are of iron, neatly japanned. The Nonpareil Microscope This instrument is designed to furnish a very complete microscope at a very low price. The following is the text describing this model taken from the above right advertisement: I spy spooky mansion for mac. Trading as Yawman Erbe, in winell he seeks to recover for what he alleges to be a breach of contract to properly place his patent ballot- box on the market. Murphy hegan an against Erbe and Philip Yawman. Wadsworth, the I Coroner's physician, has not completed I the autopsy. Send me exclusive offers, unique gift ideas, and personalized tips for shopping and selling on Etsy. The most popular color? You guessed it: brown. The most common yawman erbe material is metal. There are 31 yawman erbe for sale on Etsy, and they cost $562.30 on average. Mary Aloysia Yawman Rochester, Monroe, New York - Viola Yawman last edited. Cecilia Mary Annette (Yawman) Hafner abt Sep 1866 Chicago, Cook County, Illinois, USA - last edited.
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