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Apothecary poster 1820 / medical pharmacy doctor

APOTHECARY POSTER circa 1820 DISOPILATING SALT FROM GUINDRE. Prospectus printed on both sides, covered with handwritten additions, with signature of GUINDRE (nephew and successors of the inventor.) The text sells the benefits of salt invented by Mr GUINDRE installed in Versailles and apothecary of Madame la Dauphine and the Countess from Provence. The handwritten additions were intended to make changes for future reprinting. 15 x 22 cm. —————————————————————– AFFICHETTE APOTHICAIRE vers 1820  SEL DÉSOPILANT DE GUINDRE. Prospectus imprimé recto-verso, couvert d’ajouts manuscrite, Read More...

Borda Reflexion circle signed Jecker à Paris N· 261

Borda reflexion circle signed Jecker in Paris Number 261. Polished brass, limbe and vernier divided on silver. Removable mahogany handle. The instrument is kept in his mahogany carrying case with a set of filters , windshields, two mirrors adjustment (smaller mirror need to change it ) Period End of the 18Th Century. Settling in Paris in 1792, his worship was one of the most renowned particulary for its navigation instruments. Rare instrument signed Jecker Read More...

An early French slide rule by Lenoir, 1820-1830

A very early example of one of the first French slide rule preserved signed by Lenoir and datable between 1820 and 1832. We know that Etienne Lenoir started to produce his first slide rule in 1820. Étienne Lenoir died in 1832 and his son Paul-Etienne, who taken over the family business died in 1827. So we can date this first form of French slide rule from 1820 to 1827-1832, not later. The condition is excellent and the ruler slides perfectly. It Read More...

Rare Thomas young optometer, France, circa 1805-1820

A very rare Thomas Young optomter, the first optometer made for determining the eye’s state of focus, making it possible to prescribe appropriate correction lenses. The present example is unsigned but French and circa 1805-1820, before the generalization of the metric system, as suggested by the engraved phrase: “N[umer]os des verres en pouces [number of the lenses in [French) inches]”. Young optometer is the first modern optometer invented, first presented by Young in 1801 during The Bakerian lecture “On the mechanism Read More...

A very early fine medical/opthamological bone syringe, early 18th century

A finely turned medical, piston-action, bone syringe, certainly used for ears. The syringe measures between 16 to 23 cm elongated. The long nose, without cracks or restoration, is unusual. If normally the first syringe was made for ear, this, tiny with long nose, was for eye and ophtalmological uses. The condition is genuine and the shape of the long tube is slightly conic. Despite a small lack of bone at the tome of the tube (visible on the last picture), a superb and Read More...

ANAMORPHOSE XVIII ème 10 DE COEUR

18th century ANAMORPHOSE 10 OF HEART Beautiful watercolor anamorphosis for late 18th century cylindrical mirror. Dated. 46 x 29.5 cm Read More...

Gregorian reflecting telescope by Navarre, ca 1750

Gregorian reflecting telescope on tripod stand signed ‘Nevarre Paris’. The objective tube (I 35, Ø 5,5 cm) has a black leather binding, focusing to the secondary mirror by  and pinion and a long shank. The telescope is supported on a tripod stand by a bracket above a universal ball joint, which is set by three screws. The eyepiece (I 7, Ø 2cm) has a compound ocular around it’s signed ‘Nevarre Paris’ and a screwable sun filter. Navarre François: He bears Read More...

Anamorphose XVIII ème la mendiante 18th century anamorphosis of the beggar

ANAMORPHOSIS circa 1720 Exceptional anamorphosis engraved and watercolored by hand. Published by MUSSCHENBROEK and signed in ink on the back: AVM. This anamorphosis is part of a series of 12. Stained. 37.5 x 24 cm Read More...

STÉRÉOSCOPE PATENT 1872

Interesting project to improve a stereoscope submitted on April 29, 1872 by Mr P. Pillet. with the Ministry of Agriculture and Commerce in order to complete a patent dated February 20, 1872. Torn into two pieces, glued back together in the center without loss of text. 21 x 31 cm Intéressant projet d’amélioration d’un stéréoscope déposé le 29 avril 1872 par Mr P. Pillet. auprès du ministère de l’agriculture et du commerce afin de compéter un brevet du 20 février 1872.  Déchiré en Read More...

A VERY LARGE SECTOR by Tavernier Gravet c.1880 + case

A very large sturdy two-armed sector by “Tavernier Gravet, 19 rue Mayet Paris.” Dimension: 42.8 x 5.8 x 0.7 cm (16 ¾ x 2 ¼ x 1/3 “) Case: 45.7 x 11.6 x 3 cm (18 x 4 ½ x 1 ¼ “) Weight: 2 Kg (incl. case) Division: front 10-600 (Line of Chords) ; backside 10-170 (Line of Equal Parts) This sector represents a late witness of a widespread instrument introduced by Galileo. Popular during two centuries, “sectors continued to be used as Read More...

~GOOD FRENCH? COPY OF A CARY/GOULD MICROSCOPE~

A good European copy of a Cary/Gould simple/compound microscope c.1850. Strange accessory design (forceps and bullseye) but the rest is standard and functional. Missing the tiny objective for the compound tube and only one objective for the simple set up but otherwise complete. Draw tube and rack and pinion focussing, one sided mirror, bone stage disc, live box insert, bullseye and stage forceps. Mounts to the top of case (excellent with both hooks intact). Stands 9 inches (22 cm.) tall Read More...

Graphometer with double telescopes signed Richer Paris Dated 1808

Beautiful graphometer with double glasses signed Richer in Paris and dated 1808. It is equipped with its ball jointed foot with adjustments by microscmmetric screw. A double-spectrum graphometer is a measuring instrument used in surveying and geodesy to measure horizontal and vertical angles with high precision. It is also sometimes called a double-scope theodolite. Here is a description and an explanation of its use: The double glasses graphometer is an optical instrument composed of two glasses mounted on the Read More...