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22 May

EARLY 19TH CENTURY THEODOLITE BY GABRIEL DAVIS OF LEEDS

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SHIPPING BY FEDEX, DHL, UPS, ETC. FULLY TRACKED.  Contact Email:   [email protected] Read More...
22 May

~UNUSUAL SIMPLE/COMPOUND POCKET MICROSCOPE in CASE~

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A very good Georgian pocket microscope with a couple of innovations seldomly seen. Although unsigned, the knurling and complexity of the workmanship would indicate the original was from a first class shop (Beilby & Proctor?). Complete. Standing 22 cm. in it’s compound format, this microscope can be used as a simple field microscope as well. Three stacking lenses, excellent single sided mirror, sliding friction focus on a square pillar, unusual sprung stage from below with slider carriage, rare pivoting live Read More...
20 May

~WITHERING ROUND SIMPLE MICROSCOPE-CASED~

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A good c.1800 Withering round simple pocket microscope with 3 interchangable and stacking lenses and pivoting, single sided mirror.  Forceps replaced with a pin probe but otherwise original. Housed in a maroon card case measuring 8 x 5 cm. dia. Lenses reverse for storage. Lenses can be used at both ends. Focusiing by friction fit on twin uprights. Glass insert for stage. Read More...
19 May

3 draw telescope and case – Dollond London.

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A three draw brass telescope signed near the eye-piece, ‘Dollond, London’. It measures 28.75″ long when fully open and 9.5″ when closed. It has a main lens of 40mm diameter. The first draw tube is a three piece arrangement. Very clear when viewing. In original leather case. Circa 1830. Read More...
14 May

Microscope stage Forceps

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Good condition  Read More...
11 May

~FINE ROSS STUDENT LAB GRADE MONOCULAR ( # 8737-c.1895)~

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A fine brass and black enamel Ross student grade lab monocular #8737 in original mahogany case with lock and key c.1895. Standing 12 inches tall with mechanical stage, 3 objectives, 3 oculars, a pair of unused stage clips and oil bottle for immersion objective (1/12), this microscope has a few knocks to the bright brass commensurate with age and use but is extremely tight and sure in it’s mechanics and the optics are superb. Mechanical stage with vernier, micrometer fine Read More...
10 May

SOLD – A rare miniature portable telescope – W & S Jones.

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SOLD – A small size portable brass telescope and stand, signed on the draw tube, ‘W & S Jones, 30 Holborn, London’; they worked from 1791 – 1859. This telescope is designed for the draw tube, eye-piece, column and legs to be packed neatly into the barrel. The user removes the telescope from its case, unscrews the back collar and pulls out the tripod, eye-piece etc from the barrel. The tripod column fits in a reverse position to the stand. Read More...
09 May

Cruise Sphygmomanomater By Down Bros.

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A fine example of a  Sir Francis Cruise’s sphygmomanometer, which was used to measure pressure in the radial artery.  See last image for more details on its use. This instrument was introduced by Cruise, an Irish surgeon  in 1908 and this example by Down Bros was likely made not long after. Cruise was an Irish surgeon and an early pioneer in the use of the endoscope. He was knighted in 1906.   Read More...
08 May

Spyglass by B Hook London

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Shagreen on silver in good working order, slight scuff to the top of the case  Read More...
08 May

SIMPLE & COMPOUND DISSECTING MICROSCOPE BY NEGRETTI & ZAMBRA.

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SHIPPING BY FEDEX, UPS, DHL, ETC. FULLY TRACKED.  Contact Email:  [email protected] Read More...
06 May

Compound Microscope Chest Type Signed DOLLOND London

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The copper alloy body tube holds three lenses and the lower, narrow section of the body has an external thread to take objectives. The body is supported by a ring on an arm attached to the top of the square cross sectioned pillar. The cruciform stage has a recessed stage hole, two pinholes and a keyhole slot for accessories. The stage is mounted on a sleeve and can be racked up and down, for focusing. A pivoting arm holds the mount for Read More...
05 May

Very Rare Set of Thomason Scientific and Philosophical Medals

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A complete set of sixteen scientific and philosophical electrotype medals. Consisting of Newcomen’s Steam Engine, Minerology, Chrystolography, Metallurgy, Mountains, Galvanism, Savery’s Steam Engine, Mechanics, Optics, Phrenology, Mr. Watts Single Acting Steam Engine, Chemistry,, Geology, Mr. Watts Double Acting Steam Engine, Hydrostatics, Astronomy. Phrenology and Mountains medallions are dull metal. The magnifying lens is missing, the box is very distressed. Read More...
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