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Large Brass Watkins Clinometer – Watts & Son, London, 1941

A very fine brass clinometer in original mahogany case. Clinometers have a variety of uses. With this type of clinometer the angle of inclination of a ship can be measured very accurately. For this purpose in still water, along the quay, a heavy weight is moved abeam with the loading equipment. The values found are used in stability calculations. The instrument consists of a brass frame containing a highly sensitive cylindrical screw, graduated to minutes of a degree. The cylindrical Read More...

~A GOOD ENGLISH CUPPING/BLEEDING SET~

A good unsigned, wet/fire, cupping/bleeding set c.1820 in pleasing mahogany case with twin C-hooks and brass handle (8 1/2 x 7 x 4 inches deep). Two fire cups of varying diameter, a set of three wet cups with thread tops to fit the fully functional syringe, a sixteen blade, cubic scarificator with strong spring and all blades intact, an alcohol/paraffin burner and an additional wick for warming the fire cups. Could have had an extension tube with brass valve Read More...

~GOOD ALL BRASS POCKET COMPASS-J. CASARTELLI~

A good, all brass pocket compass by Joseph Casartelli of Manchester c.1860. Made prior to incorporation with his son, this compass boasts perfect glass, a paper card divided into 36 nautical cardinal points and 4 x 90 degree quadrants. Fine blued steel needle with brass pivot point (still points North), roping (knurling) of the brasswork on the edge of the cap. Not the best of castings and well used but there is original lacquer on the inside of the Read More...

Victorian Faradays Egg Experiment by William Ladd, London

For sale, a large-scale Victorian Faraday’s electric egg experiment by William Ladd of London. Comprised of a turned mahogany base with brass cup fitting and release valve engraved to W Ladd, London. The cup provides the seat into which the ovoid formed glass flask is positioned and also holds the lower electrode in place within the flask. A similar inverted brass cup is attached to the peak of the flask and through which a second, longer electrode is introduced at the Read More...

A Dancer field naturalists binocular microscope

A very clean and complete Dancer field microscope designed to fit into a small case for use in the field.  This example is numbered 38 and has a Wenham prism that neatly slides into place. Good lacquer throughout and accessories complete including the bulls eye condenser Read More...

Lignum Vitae Optical Compendium of Three Microscopes, ca. 1720-1730

The dome lid at the top of the compendium hides underneath a flea glass of the type seen in the other examples shown here. Its removal reveals a magnifier that allows the inspection of objects under low magnification. Inside the magnifier’s housing is a screw-barrel microscope of a particular type that includes a live box for light-permeable items. At the bottom of the compendium are two more lenses for this microscope, allowing a choice of three different magnifications. Similar Read More...

​A 19th-Century Porcelain Phrenological Seal

​A 19th-century English porcelain letter seal in the form of a phrenological head. ​The areas of the skull numerically demarcated with the key surrounding the neck. Height: 3.5″ We’ve provided links to two other similar heads for price comparison.    https://www.georgeglazer.com/wpmain/product/science-medical-phrenology-head-miniature-porcelain-antique-late-19th-century/   https://www.1stdibs.com/furniture/decorative-objects/picture-frames/late-19th-century-ceramic-seal/id-f_26399762/ Read More...

Presentation style telescope in case.

This single draw telescope is signed, ‘Geo Gowland, 76 South Castle St, Liverpool’. The length fully extended is 41″ (104 cms) and closed, 27″ (69 cms). It has a main lens of 2″ diameter giving a magnification of 16 x. G. Gowland worked from 1851 – 53 then went into partnership with a family member. The telescope is in almost mint condition and was made to presentation standard or as a “window puller”. It gives an excellent clear image when viewed through. It Read More...

Mid Victorian Aneroid Barometer by M Pillischer of Bond Street, London

For sale, a mid-Victorian aneroid barometer by M Pillischer of London. Comprised of a four and a quarter inch silvered dial with the top half divided for 28 to 31 inches of barometric pressure and with Vidi type weather indications on the inner side of the dial. Pressure is related by means of a very fine blue steel pointer and a similarly fine brass set hand operated at the centre of the dial. The lower half of the dial has a Read More...

Super example of a Jones most improved microscope by Dollond

A fine example of a Dolland, London, Jones most improved compound microscope in the original case with all the accessories. The instrument retains the original lacquer and even has part of a  hand written description of the bone slides. One of the nicest examples I have owned of good size and so complete. Read More...

~FINE PAIR OF BULKHEAD INSTRUMENTS-BENZIE of COWES~

A fine pair of bulkhead instruments (clock and barometer) by Benzie of Cowes, Isle of Wight c.1890. Untouched and in perfect condition (cosmetically and functionally), these instruments exhibit popular Victorian/Edwardian barley twist (wheat ear/rope) mahogany bodies of a depth of 3 inches. Both the barometer and clock have wonderful engraved (untouched with minor oxidation) silvered dials with minimum wear and are signed “BENZIE, COWES”. Six inch diameter, brass wall brackets (interchangeable top or bottom). Key included for clock (runs flawlessly). Read More...

BRISTOL MADE POCKET SUNDIAL

FULLY TRACKED SHIPPING  Contact Email:  [email protected] Read More...