Description
A fine No.1 binocular microscope by R&J Beck, 31 Cornhill, LONDON serial number 6632. (ON HOLD).
The microscope stands on a flat tripod base/foot, two supporting pillars, both terminating in trunnions supporting the microscope body, with large plano-concave swing-arm mirror (minor spotting) and sliding collar, substage condenser holder and screw X-Y/up-down adjustment. The stage has rack and pinion focusing to a large goniometer circuit stage allowing for full rotation of the specimen (demarcated from 0-180 degrees). Stage with X-Y controls, swept limb with single accessory holder, fine focus mechanism acting on the rack and nosepiece.Wenham prism in pull out drawer, rack and pinion to the dual eyepieces (blued steel inter-connecting rod).
Although this microscope shows minor wear to the foot (see photo), the rest of the microscope has seen little use with 99% original golden lacquer intact. The circuit stage was a rare and expensive option in 1873.
There is one complete case of accessories (most of which have never been used):
4 objectives-1 1/2 , 1 , 2/3, 1/5 inch, all in R&J Beck canisters
6 paired eyepieces-low, medium, high power
Achromatic condenser, stage bullseye, stage side reflector in oval can, erector lens, large live box, Lieberkuhn, stage forceps, Nicol/Wenham parabolic condenser, eyepiece lucida, micrometer slide in wooden case, specimen holder, dark wells (3) and circular substage holder. Eyepiece, nosepiece and substage polarisers, hand forceps, selenite/specimen holder, wrench to tighten trunnions. Oddly NO double nosepiece objective changer.
The flame mahogany case measures 20 x 12 x 10 inches deep with slide out base for the microscope and a bench condenser ( in rear), mounted on an angle typical of Beck. Original lock and key.
The microscope will be shipped in two boxes (case and accessories + microscope separately)
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Dealer information
ScientificaOpticae
Scientifica Opticae
Mark Hacking (Scientifica Opticae Inc.) has been an avid collector/dealer for over 30 years. A former Science teacher, he has an innate love for anything natural or mechanical. Specializing in optical (microscopes, telescopes), surveying, medical, weighing and drawing instruments, he is an active participant of the Scientific Instrument Fair in London. Living in Stratford, Ontario, Canada, with his wife and two children; Mark looks forward to meeting as many fellow collectors as possible, and has a worldwide following on eBay (Sciopti).