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Untitled

1812-4

Joseph Fraunhofer

zusammengesetztes Microscop, mit [...] vier achromatischen Objectiven [...] nebst Kästchen

Benediktbeuern, Germany

Very early example of Fraunhofer's box-mounted achromatic microscope, made between November 1812 and February 1814. Signed on the stage "Utzschneider, Reichenbach, Fraunhofer in Bendictbeurn [sic]".

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circa 1820

Giovanni Battista Amici

microscopio a riflessione

Modena, Italy

Circa 1820 reflecting microscope by Amici. Signed on the end of the tube: "Amici, Modena".

Rare Gunyege mask

1824-5

Vincent Chevalier

microscope de Selligue

Paris, France

Selligue microscope by Vincent Chevalier, modernised by Hugh Powell in the early 1830s. Signed on the tube "Selon M[onsieu]r Selligue, par Vincent Chevalier ainé, Ing[énieu]r Opt[ici]en Breveté, quai de L'horloge № 69 à Paris."

Rare Gunyege mask

circa 1826

Robert Aglaé Cauchoix

microscope de Selligue

Paris, France

Selligue microscope by Cauchoix. Signed on the tube "Cauchoix Opticien, à Paris."

Vincent & Charles Chevalier

end of 1830

Vincent & Charles Chevalier

microscope d'Amici

Paris, France

Horizontal microscope by Vincent & Charles Chevalier, in contemporary literature referred to as 'microscope d'Amici' (Amici type microscope). Signed on the tube "Vincent & C. Chevalier Ing[énieu]rs Opt[icie]ns, Quai de l'horloge № 69 à Paris" and on the tube cradle "CH. CHEVALIER, 154"

We Lost

circa 1837

Achille Trécourt & Georges Oberhaeuser

microscope avec platine à tourbillon

Paris, France

Signed on the drum base "Brevet d'Invention, Trécourt & Georges Oberhaeuser, Place Dauphine № 19 à Paris". Trécourt and Oberhaeuser took out a patent for this 'microscope avec platine à tourbillon' in 1837.

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August 1837

Achille Trécourt & Georges Oberhaeuser

demande de brevet d'invention

Paris, France

Patent application by Georges Oberhaeuser (Georg Oberhäuser) and Achille Trécourt for a "microscope achromatique vertical à miroir fixe avec platine à tourbillon...". Dated 17th August 1837.

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October 1837

Achille Trécourt & Georges Oberhaeuser

brevet d'invention définitif

Paris, France

Final patent for a 5-year term, dated 13th October 1837.

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1837-41

Achille Trécourt & Georges Oberhaeuser

evolution of the "microscope avec platine à tourbillon"

Paris, France

In chronological order from left to right. The first four are signed on the drum base "Brevet d'Invention, Trécourt & Georges Oberhaeuser, Place Dauphine № 19 à Paris". The fourth bears an additional signature by its retailer: "A. Abraham, Liverpool.". The last one is signed on the arm: "Trécourt, & Georges Oberhaeuser, Place Dauphine № 19 à Paris. Brevet d'Invention, Microscope, Platine à Tourbillon.".

Rare Gunyege mask

1834-49

Charles Chevalier

microscope diamant

Paris, France

Pocket microscope by Charles Chevalier. Referred to by the manufacturer as 'microscope diamant', because of its "small size and magnificent effect". Signed on the tube "Charles Chevalier, Palais Royal 163, Paris".

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circa 1841

Camille Nachet

en-tête rue Boucher

Paris, France

A poem written on a paper with a very early Nachet letterhead: "FABRIQUE DE LENTILLES ACHROMATIQUES, Camille Nachet, Opticien, № 1, Rue Boucher près le Pont Neuf." At the time, this address must have been at the corner of the rue Monnaie.

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1842

Charles Chevalier

Catalogue des instrumens construits par Charles Chevalier

Paris, France

Chevalier’s own in-house marked-up copy, interleaved and annotated. The majority of the annotations are in the hand of Charles Chevalier and relate to different suppliers (Pixii, Bourdon, Guillemain, Roget, Rouffet, Ruhmkorff, Marloye, Grau, Wauthier, Wiesnegg, ...) and their prices. The title pages bear the signature “F. L. Chevalier 1878”.

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1844

Alfred Nachet

La première enseigne de Nachet

Paris, France

Signboard used by Camille Nachet at the 1844 French Industrial Exhibition, made by his 13-year old son Alfred.
On the reverse side is written: "La première enseigne de Nachet à l'Exposition de 1844, Alfred Nachet fecit" (E: "The first signboard of Nachet at the 1844 exhibition, Alfred Nachet fecit").

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1844

Alfred Nachet

souvenirs du jeun âge

Paris, France

Micrographic drawings by the hand of the 13-years old Alfred Nachet, suggesting that he put to use his father's instruments.

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November 1845

Giovanni Battista Amici

microscopio eseguito per Lord Vernon dal Prof. Amici secondo il modello del Prof. Pacini di Pisa

Florence, Italy

Microscope designed by Filippo Pacini and manufactured by Amici for George John Warren Vernon. When visiting Amici's workshop in Florence, Lord Vernon noticed Pacini's microscope being constructed (at present in the Museo Galileo, Florence) and asked Amici to make a second example.

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circa 1847

Camille Nachet

en-tête rue des Grands Augustins

Paris, France

Calculations for a prism on a paper with a Nachet letterhead: "FABRIQUE DE LENTILLES ACHROMATIQUES, et tout ce qui concerne l'Optique, NACHET Opticien, Rue des Grands Augustin, № 1, près le Pont-neuf." The prism was most likely intended for oblique illumination.

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1847

Camille Nachet

un système d'éclairage oblique

Paris, France

Draft of a letter “Sur un système d'éclairage oblique applicable au microscope” by Camille Nachet to the French Academy of Sciences. The letter is reproduced in the proceeding of the Academy, session held on Monday 31 May 1847 (vol. 24, pp. 976-7).

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1845-55

Johann Joseph - Jean - Brunner

pocket, midsize and large microscope

Paris, France

The pocket microscope - mounted on top of its cylinder container - and the midsize model are both signed on the tube: "Brunner à Paris". The large model is signed on the tube: "Brunner, à Paris, 34, Rue des Bernardins".

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circa 1850

Johann Theobald - Jean Thiébault - Silbermann

héliostat de Silbermann

Paris, France

Early Silbermann heliostat by Jules Duboscq. Signed on the drum: "J. T. Silbermann invtr. J. Duboscq - Soleil fecit. Paris, № 52" and on the clockwork: "PAUL GARNIER PARIS 2942".

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March 1852

Giovanni Battista Amici

microscopio dal Conte di Rayneval ambasciatore di Francia in Roma

Florence, Italy

The microscope of Alphonse de Rayneval, French ambassador to the Vatican from 1850 to 1857.

Giovanni Battista Amici

June 1853

Giovanni Battista Amici

microscopio per Signor Achille Brachet a Parigi

Florence, Italy

Achille Brachet asked Amici in 1852 to make him best possible microscope.

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1853-4

Camille Nachet

microscope grand modèle

Paris, France

Early example of Nachet's 'large model' microscope. The working instrument of Frederick William Pavy. Signed on the arm: "NACHET, Opticien, à Paris, rue Serpente, 16" and on the case: "Dr F. W. Pavy". In 1853, like many British medical men, Pavy went to study medicine in Paris and returned to London the following year. This microscope dates from exactly that period.

Giovanni Battista Amici

1850s

Giovanni Battista Amici

microscopio tascabile

Florence, Italy

Portable microscope (microscopio tascabile) by Giovanni Battista Amici.

grand modèle perfectionné

1857-60

Camille & Alfred Nachet

microscope grand modèle perfectionné

Paris, France

Prototype of Nachet's 'large perfected model', most likely made for Frédéric Villot, curator of the Louvre Museum. Signed on the base: "NACHET ET FILS, Rue Serpente, 16, Paris". This prototype of the 'grand modèle perfectionné' includes quite a number of novelties, of which many did not survive in the production version. The coarse focusing is not by the usual rack and pinion, but by a chain winding round a spindle controlled by the wheels.

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1860-2

Camille & Alfred Nachet

microscope grand modèle perfectionné

Paris, France

Early example of Nachet's 'large perfected model'. Signed on the base: "NACHET ET FILS, Rue Serpente, 16, Paris". Contrary to the prototype, in this production version the square vertical limb contains a rack and not a fusee chain. In addition, the body-tube arm and the tube can no longer be detached.

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circa 1862

Filippo Pacini

portrait photo dedicated to Mr. Nachet

Florence, Italy

Portait photograph of Filippo Pacini by Anton Hautmann & Co. Signed and dedicated to Mr. Nachet.

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1867

Adam Prazmowski

demande de résidence permanente

Paris, France

Draft of Adam Prazmowski's 1867 application for permanent residence in France.
Prazmowski's entrance card for the 1867 Universal Exhibition in Paris that identifies him as an agent for Mr. Hartnack.
Circa 1867 portrait photos of Adam Prazmowski.

microscope pour l'étude des roches

circa 1877

Camille & Alfred Nachet

microscope pour l'étude des roches

Paris, France

Circa 1877 mineralogical microscope by Nachet. Signed on the base: "NACHET ET FILS, 17, rue S[ain]t Séverin, Paris". The analyser was placed at the lower end of the internal tube and difficult to remove. Just above the objective, one finds an intriguing revolver holding different Bertrand lenses, allowing the use of convergent light.

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circa 1879

Camille & Alfred Nachet

microscope pour l'étude des roches

Paris, France

Circa 1879 mineralogical microscope by Nachet. Signed on the base: "NACHET ET FILS, 17, rue S[ain]t Séverin, Paris". This model represents a slightly improved design allowing the analyser to be freely removed from the tube. An absolutely identical instrument was used by the famous mineralogist Evgraf Stepanovich Fedorov and is depicted in his 1893 work 'Теодолитный метод в минералогии и петрографии' (Theodolite method in mineralogy and petrology).

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1883

Adam Prazmowski

affaire Prazmowski

Paris, France

Clockwise: Letter dated 7 October 1883 of Adam Prazmowski to Alfred Nachet, regarding the sale of his company. Included is a list of sales figures of the last five years.
Second letter dated 1 December 1883 to Nachet, in a different handwriting but signed by Prazmowski.
Envelope with the title “affaire Prazmowski” and the words “to be placed in the rue Saint Séverin archives”. Circa 1883 (auto)biographic manuscript of Adam Prazmoswki.
Circa 1883 portrait photos of Prazmowski.

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1896

Bézu, Hausser & Cie

Liquidation de la société Bézu, Hausser & Cie

Paris, France

Act of sale between Bézu, Hausser et compagnie and Alfred Nachet of the optical firm “Ancienne maison Hartnack et Prazmowski”, dated 9 April 1896. The selling price was 25 000 francs.

Turnover of the Bézu & Hausser company after the takeover by Nachet, between 9 April 1896 and 31 December 1896, including a list of debtors. 

Receipt for purchase, dated 3 December 1897.