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

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...

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

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...

A ca. 1860 Ferdinand Ernecke optical eye model

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...

Early Abbe refractometer (c.1890), microscope

Early Abbe refractometer made by Zeiss about 1890 in Jena. According to one shown at The National Museum of American History, this one was made in 1890-1. Mirror is missing but it can be easily replaced with one with a 33 mm diameter. This one has number #183 engraved in cursive and shows only few signs of use.   A refractometer measures the refractive index of stuff. Ernst Abbé built his first one in 1869 and used it in his work Read More...

Brendel monks hood model, c. 1880

  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...

SOLD – Antique Ernst Leitz Wetzlar Monocular Brass Microscope – circa 1924, Cased

Offered for sale is a very good example of an antique monocular brass microscope by Ernst Leitz of Wetzlar Germany.  It’s  bearing production reference number 223616, which according to my Leitz dating table means that this example was manufactured in 1924, so just qualifies as an antique piece.  The condition is generally very good, with only a few use-related signs of wear to the paint finish on the instrument’s foot, which is the only blemish I could find.  It’s Read More...

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

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...

SOLD – Antique Ernst Leitz Wetzlar Mechanical Brass Microscope Over-stage c1900, Cased

For sale is an excellent example of an antique Leitz mechanical over-stage in brass dating from around the 1900 -1910 period.  It’s in fine cosmetic condition with lovely lacquered brass, nice clean verniers to both x and y axes and its original fitted storage case.  The x/y controls are nice and smooth in operation and both slide holder arms move freely in the dovetail recess, thereby allowing slides of different sizes to be accommodated.     This is an excellent top quality Read More...

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

    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...

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

    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...

1920’s Voltana Wimshurst Machine

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...

Brendel model of a flower head, c. 1900

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...