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01 Apr

DOLLOND UNIVERSAL EQUINOCTIAL SUN-DIAL

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SHIPPING BY FEDEX, UPS, DPD, ETC. FULLY TRACKED.  Contact Email:  [email protected] PLEASE SEE MY OTHER PORTABLE SUNDIALS STILL AVAILABLE Read More...
29 Mar

ARTIFICIAL HORIZON, CARY PORTER. LONDON

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SHIPPING BY FEDEX, PARCEL FORCE, DHL, ECT. FULLY TRACKED.  Contact Email:  [email protected] Read More...
29 Mar

SIX DRAW TELESCOPE, BALEEN MADE BY STEBBING

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SHIPPING BY FEDEX, ROYAL MAIL, UPS, ETC. FULLY TRACKED.  Contact Email:  [email protected] Read More...
28 Mar

Dunn’s Model Eye, and Perrin’s Phantom Eye

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1. A good but unsigned example of Dunn’s Model Eye in original case. The model eye has rotating variable aperture with three positions, 5mm, 8mm and 1 cm. Each of the 23 eye conditions are stamped on the rear. Condition is good noting minor scuffing to edges of retinae. £400 2. Perrin invented this phantom eye in 1866. Containg three lenses corresponding to a hypermetropic, astigmatic and emmetropic eye. There is a shutter at the back of the ball, in which Read More...
26 Mar

Very large binocular microscope in case with accessories.

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A substantial lacquered brass microscope, unsigned but almost certainly by Ross, the microscope foot finely engraved with the previous owners initials in a circular cartouche ‘J.B.R’, the cartouche design replicated on the objective canister lids. The microscope stand is a large ‘Y’ shaped base with a ‘machine finish’ below the golden lacquer, with 2 large uprights supporting the main microscope body on large trunnions, large (84mm diameter) articulated plano-concave mirror on sliding collar, octagonal substage collar mount with X-Y screw Read More...
24 Mar

Rib spreader by Thackray, Leeds.

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A set of articulated scissor action extractors, also known as a rib spreader. Stamped, ‘Thackray, Leeds’. 11.25 inches long over-all, with locking arm.   Post to U.S.A. – £30  U.K. £6.50. Read More...
22 Mar

Chrondrometer (grain scale) by J. Long, Eastcheap, London.

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Brass scale chondrometer with steel arm, brass bucket and stand.   Used for measuring corn, barley, seeds etc.   The brass arm is engraved, ‘J. Long, Eastcheap, London’. The sliding scale weight engraved ‘LBS per Bushel’.   One fastener missing from case.   Read More...
22 Mar

SOLD – 12 inch wooden Gunter rule.

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SOLD – With various markings and scales. 12 inches long. No cracks or splits. Read More...
20 Mar

Antique J. Swift & Son Histological & Physiological Microscope with Roller-stage – c1900, Cased

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Offered for sale is a collectable example of an antique monocular brass microscope by quality makers J Swift & Son of London termed the Histological & Physiological model.  See copy of a 1906 advert for this exact model in the listing photos.   The instrument is numbered 10473 on the underside of the tripod and this model was specifically designed to meet the needs of medical students and students undertaking general biological investigations.  This example will most likely date to Read More...
19 Mar

Standard Gauging Scale For Cylindrical Measures by De Grave Short & Fanner

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A late 19th century four fold boxwood and brass Standard Gauging Scale For Cylindrical Measures by De Grave Short & Fanner of London. The front of the gauge is marked: DIAMETER and is subdivide 0-10-20-30-40-50-60-70. The reverse is marked DEPTH, with the scale subdivided 0-10-20-30-40.   Length folded: 16.5 cm. Length unfolded: 61 cm.    De Grave of London was established in the 18th century, circa 1767, by Charles De Grave and produced weights, scales and measures. From 1817 to 1844 the business was known as De Read More...
17 Mar

THE GUNTER “RECONNAISSANCE PROTRACTOR”

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With a Myriad of Scales for Chart and Map Making,  English, c. early 20th century, stamped with the signature of Edward Gunter, Lt. Col., registered #270665. The 6″ (15 cm) long boxwood rule has beveled edges to the front, and is stamped both sides with a wealth of scales and equations for chart and map making, especially in surveying. Included are a rectangular protractor, linear reduction scales including with transversals, numerous map conversions including “Normal Scale of Slopes for Read More...
17 Mar

EXQUISITE MONOCULAR OF THE HIGHEST QUALITY

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Iridescent Elegance in “ye King’s Royal Patent” English, mid-18th century, signed “Ribright Optician Fecit London” and “By ye King’s Royal Patent,” and numbered “557.” Of cylindrical shape, 4-1/8″ (10.5 cm) long (closed), the instrument is made of silver, beautifully hand engraved with patterns of foliage, and inset with 24 hand engraved shaped lozenges of iridescent greenish mother-of-pearl. The ends are set with lenses (stopped down to 5/16″ diameter and equipped with dust slides) forming a Galilean monocular system giving Read More...
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