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~EXCELLENT SET OF REGENCY PERIOD DENTAL SCALERS~

An excellent set of matching dental scalers from the Regency period in maroon card case. Each with rectangular bone handle (two hairline cracks -stable), matching hilts and all tools in bright steel. Case is also fine with secure push button closure and hinge. Rarely used. Case measures 12 x 5 x 1.5 cm. deep. Read More...

SURVEYOR’S COMPASS

Mahogany case, silvered brass dial, unsigned Read More...

~SET OF SIX BONE SLIDERS-HALF OPAQUE FOR SOLAR MICROSCOPE~

A complete numbered set of bone sliders, probably for a small solar micrscope c.1800. Half opaque (most specimens missing-could be replaced with minerals, shells and insect parts) and the other half transparent with all specimens and rings/micas intact. Narrow format (84 x 11 mm.) with 6 cells in each. No chips or cracks. Great for display. Often missing or replaced. Read More...

~FINE AND RARE COMBINATION DISSECTING and MONOCULAR MICROSCOPE-SIGNED~

A very rare and fine combination of dissecting and free standing monocular microscopes c.1890, by Robert G. Mason. Signed “Mason, Clapham, London, SW”, most of the original golden lacquer is intact with the exception of the universal, bevelled base insert that has been oxidized in spots from handling during transition from one form to another.  Ingenious, one off construction allows the user to switch from dissecting mode to a free-standing monocular, simply by switching from the static unit in the sloping, Read More...

WWII portable altimeter calibration pressure chamber by R. W. Munro.

A WWII mark I portable aneroid altimeter calibration pressure chamber by R. W. Munro for use by the Air Ministry, circa 1939. In original case with brass labels: REF. No. 6C/63 PORTABLE CALIBRATOR MK 1  FOR ALTIMETER R. W. MUNRO LTD SERIAL No. 130/39   With AM (Air Ministry) crown mark.   For a similar calibrator by R. W. Munro Ltd, see the collection of: Physics Museum, The University of Queensland, Australia. ID: 418   R W Munro Ltd was established as an instrument manufacturer in 1864 by R W Read More...

~MATCHING SET OF SIX BONE SLIDERS-EARLY 19th CENTURY~

A good matching set of bone microscope sliders, early 19th century. Each with 4 cells and all specimens/rings intact. The usual examples of flora and fauna. Measure  ~ 79 x 13 mm. if you have a microscope that will accommodate these. 18th century examples tend to be a little smaller (72 x 12 mm.) and later examples can be as large as 90 x  18 mm. dimensionally. Read More...

W. Harris Solar microscope, C 1830

A Brass Solar microscope with rack barrel objective, in mahogany case, made by William Harris & Co, 50 Holborn, London London,  C 1830. Signed on the square rotating base-plate, the mirror with geared adjustment, the body tube with slide carrier to the top and slot for the objective lenses, rack and pinion for focusing, together with a brass slider with four numbered objectives, two various brass and one wooden slide with objectives (some beads lacking), 4 bone and 2 wooden Read More...

Travelling Gregorian reflecting telescope in brass and pink chagreen made in England circa 1780

Travelling Gregorian reflecting telescope in brass and pink chagreen.   Mobile system on the side in working order.   Presence of the two mirrors of different size inside.   Condition : good. Original varnish on the brass and original pink chagreen.   Dimensions: length of 18,3 cm x diameter of 3,3 cm.   Made in England around 1780.   Reference : similar exemplar in the Louwman book page 127. Read More...

Ross monocular and Goerz monocular.

Two monoculars: An early 20th century 4.5″ long prismatic monocular, signed ‘Ross, London, No 24868’. On the bottom shoulder is a military arrow, ‘1908. No4365’. It has a twist focus which works from a spiral groove inside the eye piece . In good condition giving a good clear image when viewing. Magnification 8.5 x. The other signed ‘C.P. Goerz, Berlin’ with engraved foliate scrolls around the signature. Focussing is with lever rack and pinion. Overall length is 82 mm. It has Read More...

A Nineteenth century Fleam and an Eighteenth Century Blacksmith Made Veterinary Fleam

A brass and steel veterinary fleam by GREAVES the blades marked cast steel and marked for the owner William Henderson.= £140 SOLD An all steel eighteenth century veterinary fleam, unsigned and with some corrosion consistent with age, but otherwise in good condition=£200 Read More...

Medico-galvanic Coil

An interesting medico-galvanic coil in very good condition. The intensity of the electric shock can be varied by pulling out the central rod running through the centre of the coil. Read More...

LARGE ENGLISH 18TH CENTURY MAHOGANY QUADRANT WITH BOXWOOD TRANSVERSAL SCALE

SHIPPING FULLY TRACKED BY UPS, FEDEX, ETC,     Contact Email: [email protected]                 IVORY REGISTRATION NUMBER     NNFDX7EC Read More...