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Ortholux Pol for sale
Ortholux Pol with extensive equiment for sale for 15.000 euros: 22 objectives, with Heine phase contrast and U-stage objectives, 8 condensors with Ahrens nicol condensor and U-stage conoscopic condensor, 17 oculars with Wright and projection oculars, U-stage and 1250 C heating stage, 100 and 30 watt lamps, point counting, macroscopic Leits photo objective, Hasselblad camera, and cabinet og bubinga and oak wood. Privately owned sold due to old age. Email me for pictures
Objectives Ernst Leitz Wetzlar
I am looking for a case of objectives for an old geological polarising microscope Ernst Leitz Wetzlar 227915 (bought in 1925 in Stockholm). I lost my case by an unfortunate misunderstanding some years ago and I would like to buy one if I can find one. It had three objectives in it which were to be mounted by a type of clamp (the clamp is on the microscope).
BRAVAIS, A. : Études Cristallographiques
BRAVAIS, A. : Études Cristallographiques, Paris, Gauthier-Villars, 1866. 4°
 viii-lxii   2-290 p., 4 engraved folding plates and 9 tables.
Contemporary vellum with black lettering.
2 small partly erased stamps on title page and minor occasional browning but very good general condition
« Rare. A collected works of Bravais as it relates to crystallography to stand as his memorial to the science he contributed so much to. » (Schuh 815)
Areometer (cylinder diameter: 4.4 cm) made of sheet iron and lead cone, both enamelled blue. In cylindrical can enamelled blue and gold (diameter: 7.5 cm, length: 29 cm).
French, unsigned, middle of 19th century.
This instrument was used for density measurements of minerals and gemstones.
ZIPPE, Die Krystallgestalten der Kupferlasur
ZIPPE, Franz Xaver Maximilian
Die Krystallgestalten der Kupferlasur
Prag, Gedruckt bei Gottlieb Haase Söhne, 1830
8° (21 x 11 cm),  4-53 p., with 5 folding copper-engraved plates.
This text ‘on the crystal morphology of azurite’ was written when Zippe was curator of the mineral and fossil collection at the museum in Prague. The text gives a thorough description of the morphology of azurite crystals, the different crystal forms observed and their combinations. Then gives a detailed description of the morphology of azurite crystals from different localities; Chessy, Siberia, Cornwall, Tirol, Bannat, Zinnwald. He adds a 5-page table with angles between the different forms. The work is illustrated with 69 carefully executed crystal drawings spread over 5 folding plates.
Paper (interim) binding with library stamp on front cover. Contents very good (pages uncut)! Small ownership stamp of K. Oebbeke on title page. Title page slightly soiled.
Schuh #5163; "very scarce"
antique German petrographic microscopes
Dr. Timo Mappes
We are always searching for antique polarizing microscopes and accessories for petrographic microscopes by the German makers "R. Fuess Berlin", "Dr. Carl Leiss Berlin - Steglitz", "Voigt & Hochgesang Göttingen", "R. Winkel Göttingen", "Ernst Leitz Wetzlar" and "Carl Zeiss Jena" for extending our collection.
We are happy to provide additional information about any German brass microscope. Please feel free to contact us at any time.
Our entire collection with more than 4000 photos of antique microscopes, along with their individual background may be visited via the link posted beneath this text. Please take a moment to flip through the detailled online discussions of 27 important petrographic microscopes made in 1870 - 1930.
GLASMODELL GESCHLIFFENER DIAMANT
Grosses , aus Glas geschliffenes Modell eines Diamanten
Preis Euro 400.-