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22 Feb

A good equinoctial compass sundial – E.M. Clarke.

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In good original condition, the chapter ring measuring 2.5 inches across, with folding gnonom and latitude bar, the silvered dial with needle and locking arm. Retains all lacquer and silvering. Contained in plush lined moroccon case with locking clasps. Edward Marmaduke Clarke was in business at 428 Strand from 1840 – 1851.   Read More...
22 Feb

Two Objects of Electrostatic Interest

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1. Glass cylinder, one end with spike and the other a brass ball, set into wax, some losses. Glass cylinder has metal ends, one threaded, with holes either end possibly for introducing gas or evacuating air. 2. Very fragile and partly damaged metal foil covered paper in a roll, one end terminating with a glass rod, the other a brass rod. Marked in ink on handwritted small label ‘Electr. vlak 1820. Read More...
22 Feb

Chamberland Pasteur Filter

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The Chamberland-Pasteur Filter was invent in 1884 by Charles Chamberland, and was used to remove bacteria from drinking water and to sterilise liquids. This example is marked on the lid ‘Sole Licensee and makers, Pasteur Chamberland Filter Co. 5, White Street Finsbury London. Tin box shows some losses to black paint and interior ‘modus operandi’ label is stained and discoloured. Read More...
22 Feb

F Bridges Phrenology Inkwell

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A good, clean unrestored example of F Bridges phrenology inkwell, in good condition, marked and numbered for the sentiments. Noting very minor loss to tip of nose and and a faded marking for sentiment 16, conscientiousness. Read More...
22 Feb

Ceramic Phrenology Seal

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A good example of a phrenology seal, the sentiments marked as numbers on the head with with description to base. In good overall condition noting minor restoration and discolouration of the nose. Read More...
20 Feb

FINELY CRAFTED RULE BY FRANCIS WATKINS

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Quality Mathematics in the mid-18th Century, English, mid 18th century, signed “F. Watkins, London,” of thin brass 6-1/4″ x 1-3/4″ (16 x 4.5 cm) decorated both sides with running leaf tip design. The front has gently beveled edges, and is exquisitely engraved with a rectangular protractor (divided every half-degree) and with scales of equal parts with transversals for interpolation. The reverse has further chart scales, and complex scales for calculation (Cho, Lat, Sin, In Me, Tan, Hou, E P, Read More...
20 Feb

Astronomical Quadrant with Rackwork Motions

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JONES’ IMPROVED ASTRONOMICAL QUADRANT, English, early 19th century, signed “W. & S. Jones, 30 Holborn, London.” This handsome lacquered brass instrument stands 10″ (25 cm) tall on its tabletop base with three leveling screws. The base has a circumferential degree scale, and is centered by a rotating disk which carries the instrument on central pillar, and which is fitted with crossed spirit levels, internal pinion and ring gears, and one-arcminute vernier. Atop the openwork pillar is mounted the 4-1/4″ Read More...
20 Feb

Belfast Customs telescope – Lee & Son.

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A large single draw marine telescope, signed near the eyepiece, ‘Lee & Son, Belfast’. Also engraved ‘CUSTOMS’. It measures 20.5 inches when closed and 37 inches fully drawn. The brown tan leather covering to the barrel is in very good condition with the stitching intact. There is a dust slider to the eyepiece and a sun visor to the main lens. No dents, lenses are damage free. Nice & clear to look through. Read More...
18 Feb

A medley of trocars.

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A medley of trocars. Happy to provide additional information and images of each.  Read More...
17 Feb

RARE ANTIQUE COPPER CORN OR GRAIN MEASURE

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SHIPPING BY FEDEX, DHL, DPD, ETC. FULLY TRACKED.  Contact Email:   [email protected]  Read More...
10 Feb

RAMSDEN’S AS MEETING POINT — A MANUSCRIPT FRAGMENT

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Ramsden’s Premises as Focal point for Scientists of the Day, English, second half 18th century, the small note addressed to Dr. James Lind, at Mr. Mitchell’s in the Hay Market “Inquire at Mr. Ramsden’s for more a particular direction.” The incomplete contents reads “Mr. Maskelyne will meet them at Mr. Ramsden’s at 3 o’clock whence they may proceed together.” Condition is fair, with traces of sealing wax.   James Lind (1736 – 1812) was a physician (to the Royal Household) deeply Read More...
10 Feb

A SPYGLASS WITH PROVENANCE

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From Bolton Hall, English, early 19th century, signed on the drawtube “Dollond, London,” on the eye surround “Robert Dymond, Bolton Hall,” and engraved on the dust cap with a heraldic fleur-de-lys. Made of brass with black enameled wood main tube, and opening from 7″ to 19-3/4″ (18 – 50 cm) by three drawtubes, the telescope is in fine condition and gives good images with its triplet achromatic objective and erecting eyepiece system in a segmented drawtube (PC/CC/CC/CC). The census Read More...
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