Germany Archives - Page 23 of 25

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Two plaster models made by Friedrich Ziegler beginning of the 20th century. Two human embryos in the second month of the development of the featus by Prof. Dr. A Ecker. They belong to a set of 5 models which give an External form from the third to the eight week of pregnancy. The two are the last two of the set and have a magnify 8-9 times. Made by the original mold and in good condition. 17 cm high Look Read More...

06 Aug

~EXCELLENT MAGIC LANTERN/MICROSCOPE PROJECTION LENS WITH VARIABLE FOCUS~

By Scientifica Opticae Inc.

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An unusual and exceptional magic lantern, variable focus projector lens with 99% original lacquer and perfect optics. Proably European (given the dimensions), this unique lens offers an alternative focussing option rarely seen in the industry. Instead of the clumsy rack and pinion focussing seen in most English and American models, this lens focuses by arced (elliptical) screw and slot. Smooth action, perfect lenses, 55 mm. coarse thread OD, 45 x 10 mm. slider slot with twin knurled screws, 80 Read More...

15 Jun

three cross sections models in the development of the frog

By Van Leest Antiques

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A set of three cross sections in the development of the frog. The basic structures that consist from ecto-, mesio and endodermal cells and grown out to Skin, Muscles, the neural tube, skeleton and muscles. The three cross sections are Sagital-, Frontal- and Transversaal section. Probably made by Somso in the 1940 and in perfect condition. Max. length 18 cm. Look for shop iformation on website page www.vanleestantiques.com Read More...

21 Mar

Impressive compound microscope made in Germany at the 18th century.

By Galerie Delalande Paris

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Impressive compound microscope in black-tinted turned wood. The body is stylishly shaped with a serie of concentric rings of reducing sizes both way from a central cylindrical part covered with a brown leather wearing a gold-tooled frieze. Over the eye lens the top cover also ringed shaped. The focussing is achieved by screwing (endless worm) with lock system within the side-pillar itself mounted on the bevel edged hexagonal base. Literature: at this stage we could only refer to a similar model in the Read More...

11 Feb

Early Twentieth Century Plaster Botanical Model of a Sunflower

By Jason Clarke Antiques

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For sale an early twentieth century painted plaster botanical model of a sunflower. This exquisite model looks more like a rare and unusual tropical species than a sunflower on initial viewing until you realise that its intention is to reflect an individual floret, (flos tubulata) within the central flower head of the plant and an example of the surrounding leaf (flos lingulata) beside it. Both are displayed in their original custom black painted metal frame with paper identification labels and Read More...

09 Feb

The 5-volumes catalogue of the most important worldwide private collection of scientific instruments with 928 color illustrations

By Le Zograscope

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KERN (Ralf), Wissenschaftliche instrumente in ihrer zeit, vom 15 bis 19. 5 volumes including : -Volume 1 : 15th and 16th centuries (Vom Astrolab zum mathematischen Besteck) -Volume 2 : 17th century (Vom Compendium zum Einzelinstrument) -Volume 3 : 18th century (Streben nach Genauigkeit in Zeit und Raum) -volume 4 : 19th century (Perfektion von Optik und Mechanik). —volume 5 15th to 19th century (Gesamtverzeichnis und Ergänzungen) 5 volumes of 3104 pages including 740 full color pages of splendid illustration of instruments and 1342 pages Read More...

10 Jan

Victorian Anthroscope / Kaleidoscope

By Van Leest Antiques

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The ‘Anthroscope’ as it is called in Germany, is a rare complex form of a kaleidoscope. It is near immaculate, but it dates from the nineteenth century. I’ve seen one example in an auction catalogue several years ago. The device is interesting because it uses several methods to alter the image alone or in combination. turning the handle pulling the handle in and out horizontally using the wood slider to mask the image producing different frames round the edges or almost into Read More...

09 Jan

Two wire Axal cross models.

By Van Leest Antiques

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two begin 20th century red and yellow-painted wire models. These axial cross models were for demonstrating the fundamental forms of the crystal systems (octohedra and pyramids). On iron base and 50cm high. Look for shopinformation on website page www.vanleestantiques.com Read More...

01 Aug

Four Obstetrical Instruments by Hornn, Leipzig, C1860

By M and R Gordon

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A good group of four mid-19th century German obstetrical instruments all maker signed by O. Hornn, working in Leipzig ( see links that follows and note that sometime between 1860 and 1894 his firm was taken over by O. Moecke, also in Leipzig). The metal portions of these instruments are all mat-finish steel. We usually see polished steel or nickel-plating on instruments of this period. https://books.google.com/books?id=oaNFAAAAcAAJ&pg=RA5-PA5&lpg=RA5-PA5&dq=O.+Hornn,+Wien&source=bl&ots=foT5vWLYIl&sig=HgTSfU-BareEL69rt5HMMA-RWRs&hl=en&sa=X&ved=0ahUKEwj23YTwm5DbAhUn7oMKHQLPCtkQ6AEIXDAH#v=onepage&q=O.%20Hornn%2C%20Wien&f=false https://www.vialibri.net/years/items/645252/1890-german-instruments-of-precision-physiology-testing-apparatus-instrument-catalogs Read More...

21 May

Universal octogonal sundial signed Hager made in Frankfurt circa 1690

By Galerie Delalande Paris

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Universal octogonal sundial signed Hager in gilt brass with the family particularity of a weather vane of winds. It lays in its leather case with geometric designs in glazed leather and bears at back exclusively the latitudes of German cities, Amsterdam, Prague and Vienna. Maker : Johann Melchior Hager 1642/1713, active in Frankfurt and related to Wolfgang Hager active in Wolffenbüttel at the same period whose an example is described and illustrated p 174/175 in “Sundials – Dominique & Eric Read More...

19 Apr

Three Pre-WW2 Opthalmodynamometers

By M and R Gordon

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We are offering three cased opthalmodyamometers ( aka tonometers) that were used for measuring ocular pressure to screen for glaucoma. On the left in the first image is a Baillart Tonometer, with a stop, in its original case, which was introduced in France in 1923. The instrument is marked “MADE IN FRANCE”. $95.00. In the center is McLeans Tonometer, first introduced in the USA in 1919; this example was made by Meyrowitz. Unlike the more widely used Schiotz,which it Read More...

29 Mar

Anatomical knee model by Somso

By Van Leest Antiques

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An Anatomical knee joint model of plaster by Somso, C 1920. The knee joint model consists of 2 pieces and gives a view of the muscles, bones with cartilage, muscle tendons and ligaments. In good condition and the height is 39 cm. Look for shop information on website www.vanleestantiques.com Read More...