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Device for demonstrating electro magnetic fields by TAMSON den HAAG

Device with rotating attachments for demonstrating the principle of magnetic fields in a motor or dynamo. From the former possession of an old school Consisting of 2 palm wood trays for mercury , a height-adjustable column on a square wood base with 3 adjustable feet, and 4 different coils with makers name Tamson den Haag ca 1930 Wooden base 15 X 15 cm  Read More...

Trepan-perforator Josef Leiter c. 1866

An obstretrical trepan-perforator by Josef Leiter (1830-1892) of Vienna of circa 1866. The instrument is made of a curved tube with a big trepan with on top a winch-handle to rotate the trepan, a similar example was exhibited in an 1866 exhibtion of instruments in London of ‘obstetrical and other instruments’. In 1866 an exhibition of ‘obstetrical and other instruments’ was held which was organized in the Library of the Royal College of Physicians by the Obstetrical Society of London. Read More...

Indian Bezoar in silver mounting 17th century

This Bezoar stone is mounted in a silver frame, it was probably made in India in the 17th century. A bezoar is a clump of undigested matter of often hair and plant fibers, found in the digestive systems of animals, including humans. This specimen likely originated from a horse or camel. Bezoar stones were once thought to possess universal antidotal properties against poisons, deriving its name from the Persian word “pãd-zahr” meaning ‘antidote’. While not a cure-all, it did Read More...

Geocentric armillary sphere F. Paluzie, signed 1822

A Spanish geocentric armillary sphere by Faustino Paluzie of 1822. These types of armillary spheres are also referred to as Ptolemaic and are made to the vision that the earth was the center of the universe. The globe is made of a structure of wooden rings (armille) which are placed in horizontal pisitions to represent from north to south: the circle of the Northern Arctic Pole, the Tropic of Cancer, the equinoctial line or Equator, the Tropic of Capricorn and Read More...

Boddaert’s Obstetrical Lever with Ebony Handle

A very fine, signed example of  Boddaert’s obstetrical lever lever with checkered ebony handle . Quoting from Dr. Anthony Tizzano’s excellent site: “Boddaert’s Lever is a simple form with a minor curve and two holes near the distal end which permit the passage of a cord (lac) thus producing traction in varying directions.” The maker is E. Joris working in Belgium, last quarter of the 19th century.  Read More...

Late 19th century oil lamp with a terrestrial globe

A late 19th century oil lamp with a terrestrial globe and base decorated with a castle set in a rural scene, Circa 1885. Northern European for the French market. The countries and seas indicated on the globe are written in French.  Burner made by Kosmos-Brenner. Height: 52 cm – 20 1/2 inches. Diameter: 14.5 cm – 6 inches. Read More...

A TRAVEL MICROSCOPE by a BELGIAN MAKER, c. 1840

A TRAVEL MICROSCOPE by a BELGIAN MAKER, c. 1840   A travel microscope with two columns and stage allowing a fine focusing. The microscope screws on the mahogany case and can be easily dismounted and locked into it. The microscope bears the very rare signature of a Belgian maker “Ch. Michel Opticien à Liège”. We can date this signature around 1840 because Michel worked in this town only from 1843 and 1850.   This type of microscope, normally of French origin, very seldom bears a signature. This Read More...

A PRISONER OF WAR STRAW WORK SEWING BOX . early 1800s.

This Prisoner of War work box is made from coloured straw. The fine work depicts a large town & ship – all flying flags. There is wear to the straw work in line with it’s age. The colour to the image inside the box is more vivid. There is also a mirror in the lid.  It measures 21.5cms x 15cms x 6cms.  Read More...

Rare Miniature Terrestrial globe Lebégue Bruxelles 10 CM Diameter

Rare Miniature Terrestrial globe Lebégue Bruxelles 10 CM Diameter mounted with tripode iron foot. Very beautiful cartography and paper in good condition Read More...

Anatomical model of the claw of a bird Marius Utrecht founded 1881.

Anatomical model of the claw of a bird Marius Utrecht founded 1881.By moving the model on the upper leg, one can nicely see the working of the musclesbirds can sleep on a tree branch without falling because when their legs are folded under them tendons in their ankles automatically cause their toes to clench. No muscles are involved or any conscious control. Read More...

Politzer’s Acumeter for Hearing Testing

Adam Politzer (1835-1920) was an Austro-Hungarian physician, who is described by some as “the father of otology”. He was a prolific inventor of medical instruments and among his most widely employed devices was the Acumeter (aka: Acoumeter), a fine example of which, by H. Reiner of Vienna, we are offering here. It  was developed to replace the ticking watch as a major measure of hearing loss. Introduced in 1877, it remained in use well into the next century. The Read More...

Terrestrial Floor Library Globe by FELK Pragua C 1860

Interesting Terrestrial Floor Library Globe by Felk Pragua C 1860 Brass méridien circle . Equatorial circle with months days and zodiacal signs Foot in blacked wood with Brass compass  Read More...