Except Free Local Pickup and Seller Managed Local Delivery — see below. These canisters are used to immerse the eye-piece objective lens in oil or water. These microscopes therefore have the serial numbers of 1001-1600 or so. Zeiss's is another excellent introduction to modern microscopy note: download the pdf brochure. It really is a 'must have'. They can only be found in museums and are not available to the average antique collector. Note: for those files without live links, i f you I will email them to you, or at least provide a link to them from this site from which you can download them -- no problem.
Looking for the Joseph Leidy Microscopy portal? Why am I trying to get a copy of multiple versions? For a very detailed, and expert, look at instruments in use in the 1950s, and early '60s -- an era in which many hobbyists' scopes were manufactured -- George Needham's 'The Practical Use of the Microscope' reigns supreme. It comes with an original case that is also in excellent condition. The mirror carrier can also slide up and down the tailpiece. Some vintage microscopes sell for a few hundred dollars, but most collectible models start in the thousand-dollar range. The encyclopedia of all microscope knowledge on the web is -- spend some time there if you can. Proud of their craftsmanship, microscope makers routinely inscribed their name and model number on instruments —making identification of the exact make and model of an antique microscope is easier than most other antiques.
Items are typically delivered within 2 weeks of the purchase date. It means that it could have been manufactured any year between 1895 and 1934. Below the stage is a swing out condenser holder with an iris diaphragm. Scientific understanding changes over time. There are three objectives on a triple nosepiece.
In some cases, the dates are accurate to within the actual year of manufacture, while for others, the dates are only extrapolations or approximations based on the style of the microscope or other information. Or, was the Spencer microscope manufactured before 1897? The first six hundred of Spencer's numbered microscopes were made with a wider optical tube and drawtube, and accepted wider eyepieces. For the history of the microscope, and lots of insights into why things evolved as they have, Hartley's 'The Light Microscope: It's Use and Development' is the ultimate resource. Spencer - Microscope Maker Charles A. In 1838, he had an ad printed, announcing himself to be a maker of microscopes and telescopes, including Dr. Such information consists of the maker's name and address, dates on the microscopes or documents that accompany the microscopes, manufacturer's archives, lists of serial numbers vs. The surface condition of the microscope is excellent.
The surface of the stage is of vulcanite. Please notify us within 24 hours of purchase if you would like to cancel an order, as prompt cancellation will reduce the likelihood that you will incur return shipping charges. Microscope and case weigh about 18 lbs. Refractive index matching oil or water must fill the air gap between the front element and the object to allow for greater resolution at high magnification. When you combine that with the good build quality and long service history many enjoyed, you can see where they have become as collectable as they are now. Value As with most collectibles, rarity, rather than mere age, determines value.
Spencer was the first to patent this type of mechanism in the United states. You'll enjoy it I promise. All sales final 48 hours after receiving your purchase. Check out this page on. What Are You Looking for? Zeiss are still in business today as the oldest optical company and largest producer. The example shown here, number 1934 is therefore one of those with the narrower, standard 22 mm draw tubes to accept the standard eyepieces.
Also, they seem to be very helpful and friendly too -- so they may be able to answer your questions if you drop them an email or a phone call about one of the newer models. Description Vintage; 1910-1950, Spencer microscope and case with lock and key. Most of the microscopes listed have original parts and are in working condition. For all other items, please see below: Free Shipping Free shipping is offered on select listings. Reichert still manufacture and sell microscopes under the Reichert, Leica, Volpi and Spencer Industrial Products names. Also visit and query the which also is frequented by knowledgeable enthusiasts and, as a bonus, contains arguably the best photomicrography found anywhere in the world professional or amateur! For further history reading feel free to follow our link on the.
Information on Polarizing, Petrographic, and Geological Microscopes of all brands See Greg McHone's wonderful site for manuals, catalogs, and guidance on many models and manufacturers. Leitz Pol microscope info -- don't miss. Ocular is marked 8X and the objective cans are marked âeoeSpencer Objective Aloe Co. A precise date of manufacture has yet to be determined. Advice on Buying a Microscope? A good Yahoo Microscope Group thread on this topic can also be found.
This 1900 focusing mechanism patent can be seen This microscope also has features for coarse adjustment from the by Spencer, also a patent date on it. The microscope pages from the -- a laboratory supply dealer. Like a normal microscope, a stereo microscope has two eyepieces, however unlike a standard microscope both of these have separate objectives lenses and see slightly different views of the object. Separate from this is a condenser lens that also has an iris diaphragm and a swing out ring that would have held something like a selenite disc not present. The surface condition of the microscope is excellent. The maximum magnification is also typically lower than for.