Vickers Instruments Greenough Triple Turret Stereo Microscope W Dual Base

US $2100

Cochran, Georgia, United States
Jun 9th

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VICKERS INSTRUMENTS Greenough-style, Triple Turret Stereo Microscope with Incident and transmitted light Base This tan Vickers Instruments stereomicroscope with black transmitted light base comes with two matched 7x eyepieces. It has a triple objective turret, with objective markings of 2.5x, 3.5x, and 10x (on the longest objective). Multiplying the eyepiece magnifications by the objective designations yields: 17.5x, 24.5, and 70x. It is supplied, as are all Greenough stereomicroscopes, with dual porro prisms. The Greenough microscope is named after its American inventor Horatio Saltonstall Greenough. This microscope, with its three objectives attached, is substantial, and weighs approximately 12 pounds 7.4 ounces. The microscope comes with dual substage mirrors to illuminate each of the optical paths in the Greenough design. The dual substage mirror is shown in the third photograph. Dual illumination on stereomicroscopes was first introduced by Professor Riddel back in 1853, and continues to be used. The position of the dual mirrors are can changed via the adjustment controls on both the right and left side of the transmitted light base. This stereomicroscope is approximately 12.5 inches tall in working position. Its working distance at 2.5x is approximately 2-3/4 inches. Its base, at widest point, is approximately 6-1/2 inches. The microscope comes with a British power plug, expected considering its origin. Fortunately, this plus can be adapted, with appropriate adaptor, to US power. The stereomicroscope is supplied with a large frosted glass stage plate. The last picture is the detail at 2.5x of one of the two eyes on the Banco De Espana, Cinco Milpesetas bank note. Perhaps because of its excellent quality (see detail picture), this Vickers Instruments stereomicroscope rarely comes to market. ______________________________ This stereomicroscope was made by British manufacurer Vickers Instruments __________ No need for concern about stock picture matching the item for sale. PHOTOGRAPH OF THE ACTUAL ITEM FOR SALE These pictures are part of this listing, and we hope they can answer most questions. All items included in this sale are shown. However, feel free to ask any questions you may need answered to make an informed decision. We will do our best to answer them. __________ To help keep buyer costs as low as possible, we ship via economy shipping, which although less expensive takes longer. However, we recognize that some buyers would prefer to receive their package as quickly as possible. If this is you, we offer expedited shipping at cost. There is no cost for packing materials or handling. If you select this option, please let us know at auction close by sending an eBay message, Do not rely on a message sent through PayPal as these are not always seen. We try to ship items as quickly as possible. If you do not select expedited shipping, no worries we will mail your purchase out quickly via economy–mail. __________ We are proud of the 100% feedback and over 1,600 transactions we've had on eBay over the past 15 years. We would like you to be as pleased with your purchase. If for any reason you are not 100% satisfied, please let us know. We will work to fix your problem quickly and satisfactorily. You will never need to open a case, or leave neutral or negative feedback. We will be pleased to work with you to correct any issue quickly and satisfactorily.