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A Horseshoe magnet in wooden cover.

A nice Horseshoe magnet in an mahogany cover, 19th century. The cover is locked with two brass screws with a turnig brass ring on the top. One of the poles is marked with N (Nord). In perfect condition wth measurements 35 x 13 x 3,5 cm. For shop info look on www.vanleestantiques.com Read More...

Victorian Silver for the Ear

A handsomely-cased  “HAWKSLEY LONDON” ear speculum marked “SILVER in a velvet and silk lined leather-covered case. $195.00 A pair of pair of miniature silver “invisible ear phones” in a velvet and silk lined leather-covered case. A  set can be seen on a page entitled “Paradise for the Deaf” from a Rein catalog  illustrated in HISTORIC DEVICES FOR HEARING:  THE  CID GOLDSTEIN COLLECTION (1984:143).  They were  used  to amplify sound in patients presumably suffering from narrowing or blockage of the external Read More...

A set of Six Steel Dental Scalers

A good set of steel dental scalers with steel handle all in good condition, noting one velvet separator missing. Mirror in lid, rather dull original wood case Read More...

Mid Eighteenth Century Non Achromatic Decagonal Reverse Taper Telescope by John Gilbert

For sale, a mid-eighteenth century, non-achromatic decagonal reverse taper single draw telescope by John Gilbert of Tower Hill London. This super example has a one inch non-achromatic single objective lens with original dust slide and measures 38 inches closed and 46 inches extended. The mahogany ten sided tapered barrel holds a single draw tube containing five lenses and is completed with a bulbous type eyepiece with dust slide, common during the period. The “improved- field non-achromatic terrestrial” lens arrangement of the Read More...

VICTORIAN LIGHT SCREEN

VICTORIAN LIGHT SCREEN, English, c. 1850, signed on silk “C.W. Dixey, Optician to the Queen, 3 New Bond Street, London.” A fine lacquered brass stand supports a 12″ (30 cm) diameter circular green silk shade. All is collapsed for portability; the base swings open with four feet, the pillar opens on two drawtubes to 17′ maximum including its upper swivel joint, and the fan-fold shade opens full-circle from its very compact rectangle. Condition is very fine except the silk Read More...

TABLE-MOUNT MICROTOME FOR PREPARATION OF THIN SECTIONS

TABLE-MOUNT MICROTOME FOR PREPARATION OF THIN SECTIONS, probably English, 19th century. This fine lacquered brass instrument measures 3\” x 2-1/2\” x 2-3/4\” (8 x 6 x 7 cm) and has a cylindrical specimen chamber with calibrated long screw to drive the specimen forward, and side clamp screw to lock it in place for slicing across the flat top. The fine screw makes 40 rotations for 1\” of travel, and each rotation is subdivided into fourths. The table clamp permits Read More...

PRECISION CALIPERS

PRECISION CALIPERS, English, c. early 19th century, signed “Tylor & Pace, London, No. 21.” Made of electrum and steel, with turned steel feet and turned wood handle, the calipers are 7-1/4″ (18 cm) long overall. The rounded jaws open by convenient thumb lever, which drives the geared pointer against a semicircular scale of 0 – 250 units numbered every ten units, each unit being one one-thousandth of an inch. The instrument is in very fine condition, in a mahogany Read More...

MYSTERY OPTICAL DEVICE,

MYSTERY OPTICAL DEVICE, possibly English, c. 1900. Measuring 2-3/4″ (7 cm) overall, this unusual “instrument” is made of turned boxwood, blackened on the interior, and set with a 45-degree glass prism ground and polished convex on the inner end. Held to the eye, this viewer gives a very clear magnified reversed view at right angles, in focus at a distance of 3″ from the prism. A mystery, in excellent condition. Read More...

Presentation binoculars in case, Royal Military College

A set of brass binoculars measuring 17.5 cms when adjusted fully out and 14.5 cms closed with objective lenses of 5 cms diameter. Engraved around the objective hoods, ‘Royal Military College, December 1890. Prize – Gymnastics. Gentleman Cadet G.G.I. Carmichael’. The black enamel to the binoculars is almost depleted. Dent to outer rim of one objective cell. The lenses are all damage free and the binoculars give a good, clear image. In fitted leather case with shoulder strap.   I do not always receive enquiries Read More...

EXQUISITE EIGHTEENTH CENTURY MONOCULAR

EXQUISITE EIGHTEENTH CENTURY MONOCULAR, English, c. third quarter 18th century, signed “Dollond, London.” Opening from 2-3/4″ to 3-3/4″ (7 to 9.5 cm) by single drawtube, the monocular is constructed of beautifully contrasting dark stained mount, green rayskin, silver bands, wood interior, and red leather stamped in silver with the most delicate, flowing flowering vines. It is a Galilean optical design, giving upright images, the 1-5/8″ diameter singlet objective having large light gathering power. Condition is excellent. It is a Read More...

FINE EARLY REFLECTING TELESCOPE

DIMINUTIVE EARLY CASE-MOUNTED GREGORIAN TELESCOPE, probably English, c. second quarter 18th century. The 8-5/8″ x 3-1/2″ x 2-3/4″ (22 x 9 x 7 cm) mahogany or rosewood case has oak bottom and beveled slide-off lid, plus inset brass mounting plate and beautiful brass escutcheon. The brass telescope assembly mounts to the lid, by tapered steel screw and turned brass pillar to altazimuth mount. The main tube is 7-1/4″ long and 1-5/8″ in diameter, fitted with spring-loaded speculum metal primary Read More...

HANDSOME ENGLISH MONOCULAR BY AN UNCOMMON MAKER

HANDSOME ENGLISH MONOCULAR BY AN UNCOMMON MAKER, third quarter 18th century, signed (stamped) on the drawtube “S. Iohnson, London.” Measuring only 2-3/8″ (6 cm) long closed, this little telescope is constructed in a wonderful combination of materials typical of 18th century fashion, with wood main tube bound in red-stained ray skin, card drawtube bound in green-stained vellum with stamped decoration, dark-stained  mounts, and internal diaphragm of wood. Condition is very fine, noting some (rather attractive) wear to the stain Read More...