Gyroscope Brass Steel London England 19th Century - Foucault's Spinning Top

“Richer à Paris” 1806

Gilded brass semi-circular protractor signed and dated "Richer à Paris/1806" that refears to Jean-Francois Richer.

19th Century / 1801 - 1900

Telescope diopter made of brass, composed of a movable graduated ruler, small compass with wind rose on the base, distance collimator telescope, vertical graduated circle and spirit level placed on the top of the telescope.

"Troughton London"

Brass theodolite with compass, telescopic sight and spirit level, marked 'Troughton London'. Edward Troughton was one of the best manufacturers of scientific, navigational, surveying and astronomical instruments. Following the death of his eldest brother and partner, he took over from William Simms in 1826 and the name of the firm changed to Troughton & Simms.

“F. W. Morgan Optician Manchester”

Brass microscope signed on de base "F.W. Morgan Optical Manchester".

T. WALKER'S Patent HARPOON SHIP LOG A.2.

Mechanical harpoon towing log/"Harpoon towing log" model A2, made of brass and porcelain, without stabiliser, fitted with three dials on the porcelain panel, of which the first records miles up to 100, the second records units up to 10 miles, the third records quarter miles. The four rotor blades are stamped with the anchor motif and the initials T.W. The design details and features suggest a production date around 1880.

J. H. Steward 406 Strand London

Brass laboratory microscope, J. H. Steward, 406 Strand London. The mahogany box containing it has an empty slot and signs of a possible attack on the inside of the lid. The inscription "St. Paul's Churchyard" (active location between c.1867 and 1930) on a component found in the wooden box and the characteristics of the instrument allow us to date it with good probability to the last quarter of the 19th century.

Italy, first half of the twentieth century

Scandalli 96 Bass Accordion. Contemporary case.

Paolo Soprani accordion, 120 bass in bakelite with a decor which imitates the mother-of-pearl.

Sextant with brass frame, vernier with adjustment screw, three colored filters for the fixed mirror and three for the mobile one, aiming telescope.

"Franciscu"

Gilded brass leveling square signed "Franciscu".

"Canivet a Paris"

Level and square set with golden brass wire, signed “Canivet a Paris”. On the instrument there are also the inscriptions “6 p de France / Nelle Mesure”.

"Butterfield a Paris"

Leveller set square with plumb line, in gilded brass, signed “Butterfield a Paris”; there also is the inscription "pouces de Roy". Michael Butterfield (1635-1724) was an English watchmaker who moved to Paris around 1663, where he worked at the royal court and was appointed engineer by Louis XIV. He opened a shop of precision instruments, and specialized, in particular, in the production of sundials. Among his main customers is the Tsar Peter the Great, who also visited the workshop in 1717.