Germany Archives - Page 2 of 25

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Leyden Jars to Lodge for the demonstration of electrical resonance A total of 60 cm high the wooden base plate 32 X12 cm beautifully restored in completely original condition, see also the photo of the early catalogue of Max Kohl in which it was depicted will be packaged very carefully and sent by registered mail One jar is fitted with a closing wire containing a spark gap limited by two brass balls, the other contains a fully closed circuit, the length of Read More...

03 Feb

Antique German anatomical model of the head by Bock-Steger, skull

By Nautilus Antiques

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Antique German anatomical model of the head, by Franz Josef Steger after a design of Carl Ernst Bock (1805–1874), from the late 1800’s. Hand painted plaster, accurately shows the neck’s muscles and the skull, in detailed vivid colors. It’s in perfect condition, I can only notice very light signs of age (very small chips, one old one on the ear) Measurement are 33,5 x 24,5 cm Read More...

03 Feb

Antique German anatomical model of the head by Bock-Steger, muscles

By Nautilus Antiques

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Antique German anatomical model of the head, by Franz Josef Steger after a design of Carl Ernst Bock (1805–1874), from the late 1800’s. Hand painted plaster, accurately shows the muscles and arteries in detailed vivid colors. It’s in perfect condition, I can only notice very light signs of age (few very small scuffs in the paint) Measurement are 33,5 x 24,5 cm Read More...

03 Feb

A ca. 1860 Ferdinand Ernecke optical eye model

By Nautilus Antiques

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A ca. 1860 rare Ferdinand Ernecke (1832-1914) optical eye model, made in Berlin (Germany).This instrument was used for demonstrating the difference between nearsightedness (myopia) and farsightedness (hyperopia). The 2 lens are missed.Wood pedestal and brass, stand ca. 19 cm in height.Under the wooden base there’s a worned paper label, with handwritten “Jo.. Men…”. Read More...

01 Feb

Brendel monks hood model, c. 1880

By Van Leest Antiques

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A botanical monks hood Brendel model no. 58. The description of this model is found in the 1930’s Brendel catalogue under the poisonous flowers. The model is an eight times enlarged depiction of the blossom with a removable cap and pistons. The model arises from a black ebonized stand, which is characteristic for Brendel. The stem is made of green painted wood and two green leaves. On top, the flower blossom with removable parts which are carefully made of Read More...

31 Jan

SOLD – Antique Ernst Leitz Wetzlar – Compact Brass Microscope – circa 1900, Cased

By Arcboutant Scientific

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Offered for sale is a very good example of an antique monocular brass microscope by Ernst Leitz of Wetzlar in Germany, bearing production reference number 55838, which according to my Leitz dating table means that this example was manufactured in 1900. The condition is generally really good, with only a few age and use appropriate signs of wear to the finish on the instrument and just the right time worn look to its lacquered finish and brass-work. This example Read More...

30 Jan

Electric Flicker plate attachment for ruhmkorff or a wimshurst machine ca 1880

By Early Science

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A string of tinfoil is on this glass plate 14 X 10 cm . When it’s brass hooks are connected to an electrical machine, a ruhmkorff or a wimshurst small sparks will jump simultaneously at all the gaps between the tinfoil giving a fairy like effect. This ‘flickerplate ‘ is in a good working order Read More...

30 Jan

Electric Flicker tube attachment for ruhmkorff or a wimshurst machine ca 1880

By Early Science

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A string of tinfoil spiral along the of this glass tube, c.55cm length. When it’s brass hooks are connected to an electrical machine, a ruhmkorff or a wimshurst small sparks will jump simultaneously at all the gaps between the tinfoil , giving a fairylike effect. This ‘flickertube’ is in a good working order Read More...

29 Jan

1920’s Voltana Wimshurst Machine

By Van Leest Antiques

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A Voltana Wimshurst Machine for didactic purposes. The Wimshurst machine is a historical electrostatic machine which generates high voltages. It was developed between 1880 and 1883 by the British inventor James Wimshurst (1832-1903). It is an electrical generator with a distinctive appearance, having two large contra-rotating discs mounted in a vertical plane, two crossed bars across them, and a spark gap formed by two metal spheres. Dimensions: 19 x 36 x 43. Find out more on www.vanleestantiques.com Read More...

25 Jan

Brendel model of a flower head, c. 1900

By Van Leest Antiques

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Brendel paper-mâché model of a schematic flower head system with original label, no. 170b. The flower head (capitulum) consists of short-stalked flowers on a saucer-shaped, flat flower base (receptaculum). The lateral flowers arranged in 13/34 position. The model can be separated into two halves. Another specimen can be found in the Utrecht University Museum (Object no. 0285-123093). Around 1866, Robert Brendel in Breslau (now Wroclaw, Poland) began to commercially copy the flower models of the Silesian pharmacist Carl Leopold Lohmeyer Read More...

25 Jan

Rühmkorff coil by E. Leybold’s Nachfolger, c. 1905

By Van Leest Antiques

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A Rühmkorff’s induction coil with Vrill interrupter. Made by E. Leybolds Nachfolger Coln am Rhein and imported by P.J. Kipp & Zonnen of Delft Holland. All parts are detachable and all connections arevisible. The iron core, the primary and the condenser can be removed and the action of these parts can clearly shown. The Vrill interrupter is a modified platinum contact-breaker with a second spring. The primary circuit can be suddenly broken. Owing tot his prolonged period of contact the Read More...

09 Jan

Cased Paul Waechter Microscope. C. 1880’s

By Orlando Microscopes

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Cased Paul Waechter Microscope. C. 1880’s and case is stamped with serial number 4808 and also stamped with P. Waechter Berlin. Accessories include a larger glass disc, a few eyepieces and a few objectives marked 4, 7 and the one on the microscope is marked 9. Fine focusing seems to work, however, the coarse focusing is assumed to be accomplished by drawing the body tube and attached objectives up and down. I have not been able to move the Read More...