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Victorian Wall Mounted Hygrometer by Negretti & Zambra London

For sale, a Late Victorian wall mounted wet and dry bulb thermometer set or hygrometer by Negretti & Zambra, London. Comprised of a mahogany backboard with brass hanging loop to the top, the board is set with two large brass screws at the top onto which are set two porcelain Fahrenheit thermometer scales measuring from 20 to 120 degrees. To the left-hand side of the scale, both are painted to the makers, Negretti & Zambra, Scientific Instrument Makers, London and Read More...

Mid-19th Century Frederick Bridges Phrenology Inkwell

A porcelain phrenology bust and inkwell signed “By F Bridges Phrenologist”. Frederick Bridges, an eminent Victorian phrenologist,  published his aptly titled POPULAR MANUAL OF PHRENOLOGY in 1860 and it went through many printings. The inkwell was produced about the same time.It is in very good condition, noting  that  “By F Bridges Phrenologist” is lightly struck on the plinth. Height 14 cm or 5.5″.  Read More...

Set of Pulvermacher’s Patented electro galvanic chains

A set of Pulvermacher’s quack electro galvanic chains, in original case condition good. Awarded medals Paris exhibition 1855. Read More...

Set of two tracheotomy guillotines by Wood,York

Two different sized tracheotomy guillotines with ebony handle by Wood of York. In original case but with a detached lid, otherwise good working condition Read More...

A MAJOR METAMORPHIC COMPENDIUM BY SCHMALCALDER

A MAJOR METAMORPHIC COMPENDIUM BY SCHMALCALDER, English, c. 1827. With structures of bright lacquered brass, the stowed compendium forms a compact drum 4″ across and 2″ thick (10 x 5 cm). One side has a large glazed prismatic compass, with tall folding sight vane, hinged and adjustable prism sight, green compass card printed with beautiful florally decorated 32-point rose and circumferential degree scale divided every 20 arcminutes and labeled in reverse with viewing through the lenticular prism. The card Read More...

Late Victorian Geissler Tube Cross Vacuum Scale

For sale, a Late Victorian Geissler Tube Cross Vacuum Scale This uncommon set is comprised of an ebonised wood base and upstand. The former has a metal stand which provides a base for holding six Geissler tubes which are in turn fastened at the top by brass electrical connection points secures to the upstand. Each Geissler tube has an attached label numbering successively from 1 to 6 and the base and the side of the upstand are also fitted with Read More...

George IV Clock Wheel Barometer for Tarelli of Northampton with Tagliabue Provenance

For sale a rare George IV mahogany and Satinwood banded Wheel Barometer with Clock retailed by Tarelli of Northampton. This beautifully imposing wheel barometer is fitted with a very large twelve inch silvered and engraved dial measuring 28 to 31 inches of barometric pressure with weather indications around the inner circumference of the scale. It has a fine blue steel pointer and brass set hand all enclosed behind a spun brass bezel and convex glass front. The set hand is operated Read More...

Wind tunnel test model designed by Barnes Wallis

Winglets wind tunnel model designed by Barnes Wallis for hypersonic jet aircraft, mid 1960s. Provenance: From the family of Barnes Wallis, by descent. See: Barnes Wallis papers at the Science Museum Group, ref. ED4/3. Read More...

~HISTORIC BRASS POCKET COMPASS -CAPT. BAIN-4TH. BN. MIDDLESEX REGT.~

A solid brass compass once belonging to Capt. Bain of the 4th Battalion, Middlesex Regiment with full coat of arms/garters and motto. Measuring 4 cm. in diameter and 1 cm. thick, the lid is friction fit and beautifully knurled. The compass itself has a bevelled glass, blued steel needle marked  N and S (points North), chiselled brass pivot point and 16 cardinal points. The silvered dial is broken into 4 x 90 degree quadrants. No damage to the interior Read More...

Large Victorian Desk Thermometer on Serpentine Base by Negretti & Zambra London

For sale, a large Victorian desk thermometer with serpentine stone base by Negretti & Zambra This fabulous example is comprised of a graduated and turned serpentine stone base with a black ebonised wooden upright stand affixed to the top. The front face sports a superb opaline glass and painted Fahrenheit scale reading 30 to 130 degrees on the right and with various temperature indicators to the right. The crest of the glass scale is painted in red with Negretti & Read More...

Presentation telescope, Vice Admiral G.R.B. Blount, D.S.O., R.N.

A good single draw, nickel silver, presentation Officer of the Watch telescope, the sun visor engraved, ‘H.M.S. Britannia. French Prize. G.R.B. Blount. Dec’r 1892′. The telescope measures 17.5″ (44.5 cms) closed and 23.25″ (59 cms) fully drawn, with a clear aperture objective lens of 1.5″. With lens cap, eye piece dust slider and original canvas covering to the barrel with ‘Turks head’ plaiting to each end. The telescope is very clear to look through.   George Ronald Beddard Blount was born in Kent Read More...

FINE LADDER FRAME SEXTANT BY POTTER. LONDON

SHIPPING UPS, FEDEX, ETC., FULLY TRACKED.  Contact Email:  [email protected]                                              WOULD BE DIFFICULT TO FIND A BETTER EXAMPLE. Read More...