Watson microscope dating, c. 1910-1920
Trade label of John C. I also wonder that with a concave mirror, setting a condenser below the microscope dating requires the mirror to be lifted up to enable critical focusing, which I believe isn't practical if one wishes to take the condenser or not. This all brass microscope is engraved in script, on the foot by Watson and has the serial number which dates it to Possibly made by T.
Boston Optical Works, Tolles No. Because the scope was in very bad condition when I bought it, I had to carefully remove the remaining lacquer and add a transparent lacquer to protect the brass.
Adams, London, Small Culpeper style microscope. It has 3 objec Monocular microscope with draw-tube focusing L.
Its imaging capabilities are not as good as microscopes from the end of the 19th century, but one should remember it was intended to be sold to a large number of students for a reasonable cost. Oberhaeuser, Place Dauphine, Paris. French and Swiss microscopes. Small Model 3 Kleines Mikroskop C. The mirror is concave, single face.
The list of microscopes presented below is organized with respect to the country of origin and further with respect to the instrument maker. The whole instrument is in excellent microscope dating condition with all original finishes, a rich golden lacquer and high polish to the woodwork.
Grunow, New Haven or New York: Portable microscope lamp, c. It has a plain square stage with slide clips and a socket friend dating boyfriends brother accommodate sub-stage accessories, a plano-concave mirror and the stand is engraved with the makers name, address and instrument serial number, all standing on a mahogany base.
The "Improved National" Binocular Microscope, c. Though thefine focus does not provide the feeling of more modern scopes, I found it sufficient for its use. The plano-concave mirror is in excellent condition on both sides. The American Centennial binocular model, c.
The information may be freely used and distributed for personal interest but not for commercial gain. Case-mounted portable microscope, c.
Mainly constructed of brass, this model had nickel plating and hard rubber mounts for the eyepieces. Microscope made by Samuel Murset, Philadelphia retailed by G.
Monocular microscope dated Early Watson Microscope unsigned W.