Other Archives - Page 2 of 20

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Peltier electrical apparatus 19 century by Salm In 1834, a French watchmaker and part time physicist, Jean Charles Athanase Peltier found that an electrical current would produce heating or cooling at the junction of two dissimilar metals.In the metal base the makers name SALMThe glassware can be easily disassembled to allow safe very well-packaged shipping All original in total 50cm ( 20 inches ) high Read More...

11 Apr

Antique electrolysis device 19 Century Sandwijk Rotterdam

By Early Science

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Antique electrolysis device 19 Century Sandwijk Rotterdam Fully undamaged and beautifully restored electrolysis devicethe glass parts are very well packed separately to ensure safe shipping total 28 cm (10 inch ) high Read More...

06 Apr

A pharmacy pill maker-silver set H.L. Becker Fils & Co Bruxelles

By Early Science

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A pharmacy pill maker-silver set H.L. Becker Fils & Co Bruxelles This pill maker and pill silver is in beautiful condition dimensions of the board 35 X 23 cm ( 14 X 9 inches ) dimensions silverer high 9 cm (3.5 inches )The plate and slide have 2 different sizes to make large or small pillsAll parts numbered 320 . Henri Louis Becker instrument maker Bruxelles 1848-1925In the gilding or silvering pot the pills were coated with silver or gold to Read More...

05 Apr

C REICHERT MICROSCOPE

By Victor Burness

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The worm gear is connected to a gear wheel that is attached to the pinion spindle and is in good working order The frame is a brass casting one of the feet has the number 12 which suggest number 12 of the batch One eye-piece lens one objective lens two stage clips and a wheel of stops Read More...

29 Mar

Cylindrical brass surveyor’s square signed Blondeau made circa 1700

By Galerie Delalande Paris

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Cylindrical brass surveyor’s square with 8 long sighting slits, resting on a cylindrical foot for attachment to a stick. The top is fitted with a disc engraved with a scale around the edge graduated from 0 to 180° twice. This disc supports two sighting pinnae and a 4-direction compass with a steel needle, all covered by a glass and a circular lid. Signed « N. Blondeau f » on the bottom. The square is housed in a cardboard case with gilded black Read More...

07 Mar

A pair of solid silver hearing aids, ear tubes

By Early Science

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A pair of solid silver hearing aids,Weimer in their original Weimer case. They date to the early 20th century and have an attractive design. The tubes fit into the ear canal, and the larger hollow sections sit in the outer ear. Each is marked with the Weimer Co. signed as is the inner silk lining of the case.Date 1900-1920 and measuremants 6 x 4,5 x 3 cm. This set is from a collection of hearing devices now being sold. Are you Read More...

01 Mar

A 8inch/21cm Dutch proportionnal dividers with micrometric screw by Jan Kleman ?, c. 1800

By Le Zograscope

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A very good and quite unsual example of a good, large and cased Dutch, but English-type, proportionnal dividers measuring 8inch/21cm lenght and bearing the signature “K. J.”, certainly for Jan Kleman ?, and datable circa 1800. Jan Kleman was a Dutch maker etablished in Amsterdam between 1781 and 1808 between his son comes in the trade and the company takes the name Kleman & Zoon. The proportionnal dividers is divided with two lines and has a very unusual micrometric screw. Rare Read More...

26 Jan

Light reflection -refraction optic instrument

By Early Science

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Light reflection -refraction optic instrument , from the former property of a technical college 35 cm wide Read More...

21 Jan

ELEGANT ASTROLABE RETE WITH FLORAL DESIGN

By TESSERACT

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Seventeeth Century Map of the Heavens, Indo-Persian, c.17th century, of pierced and hand-engraved brass, 6″ (15 cm) in diameter. Engraved in Arabic script, the rete, with its map of the heavens and celestial coordinate system, has a circular ecliptic band labeled with the twelve Zodiacal houses and subdivided on the beveled edge for every two days. Arcs of the equator are included inside the upper half of the ecliptic, and outside the lower half. A horizontal bar is counter-changed Read More...

14 Jan

Gunner’s Level and Gauge, early 17th

By Alpha et Omega

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Gunner’s Level and Gauge Early 17th century Italy Heavy brass, cm 33.2 x 10.6; thickness 6 mm. The long leg of this instrument enables it to be placed in the barrel of a gun to read elevations against a scale of degres. The range of the fire was calculated on the basis of the weitght and caliber of the ball. The instrument also serves as a gunnery gauge, carrying scales for stone (“PIETRA”) and iron (“FERRO”) and measures for PALMI (palms) and PIEDI Read More...

06 Jan

An Early 1900’s low grade ‘Silver’, Folding ,Medicine Fork & Spoon

By JP Antiques

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This antique Folding Medical Spoon & Fork is in great condition. The folding handle has an ornate design – with a different figural face on either side. There is no stamp or makers mark that I can see. It is 16.5cms long – when open.The spoon is tea spoon size. Read More...

29 Dec

Cased and signed Plossl Microscope.

By Orlando Microscopes

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Cased and signed Plossl Microscope. Microscope has no accessories other than what is on the microscope. The top of the limb that contains the body tube is signed:” Plossl Wien”. The single-sided substage mirror is in fair to good condition. Case is in very good condition. I am unable to date the microscope any more accurate than pre-1868. Microscope stands 9.5” (24.1 cm) tall. Case dimensions are 10.75” (27.3 cm) long, 3.5” (8.8 cm) wide and 3.75” (9.5 cm) Read More...