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Home > Auction >  Science&Technology/MechanicalMusic/Fairground >  Lot.0407 2 Brass Microscopes

LOT 0407 2 Brass Microscopes

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EUR280
Estimate  EUR  400 ~ 700

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2 Brass Microscopes 1) Society of Arts type microscope, unsigned, c. 1870, original lacquered and black-japanned brass, tilting stand, plano-concave mirror, substage diaphragm wheel with four stops, rack-and-pinion coarse focusing (defective), nosepiece micrometer knob fine focusing, mechanical stage with Alfred White-type "joystick" lever adjustment, height 13 in., with one objective lens by R.J. Beck and one eyepiece in mahogany case. - Note: The design for this English bar-limb microscope dates to a prize that was offered by the Royal Society for the Encouragement of Arts, Manufactures & Commerce, for a compound microscope that would sell for 3 guineas only and was awarded to the firm of Robert Field & Son of Birmingham. Because of the popularity, it was copied by many of the instrument builders of the time. - And: 2) Signed on the base "S. Maw. Son & Thompson, London", c. 1880, polished brass, concave mirror, substage diaphragm wheel with three stops, tilting stand, rack-and-pinion coarse focusing, nosepiece micrometer knob fine focusing, mechanical stage, one eyepiece, one objective lens, height 13 in., with live box and forceps in mahogany case, lower section with drawer for specimen slides. 2 Messingmikroskope 1) "Society of Arts"-Typ-Mikroskop, unsigniert, um 1870, original zaponiertes und geschwärztes Messing, Kippstativ, Plano-Konkavspiegel, Lochblendenscheibe unter dem Tisch, Zahnstangentrieb zur Grobfokussierung (defekt), Mikrometerknopf zur Feinfokussierung, mechanischer Objekttisch mit "Joystick"-Hebelver-stellung nach Alfred White, Höhe 33 cm, mit einem Objektiv von R.J. Beck und einem Okular im Mahagonikasten. - Anmerkung: Der Entwurf für dieses englische Mikroskop geht auf einen Preis zurück, der von der Royal Society for the Encouragement of Arts, Manufactures & Commerce für ein zusammengesetztes Mikroskop ausgelobt wurde, das für nur 3 Guineen verkauft werden sollte. Vergeben wurde der Preis an die Firma Robert Field & Son aus Birmingham. - Und: 2) Signiert am Fuß "S. Maw. Son & Thompson, London", um 1880, Messing poliert, Hohlspiegel, Lochblendenscheibe unter dem Tisch, Kippstativ, Zahnstangentrieb zur Grobfokussierung, Mikrometerknopf zur Feinfokussierung, mechanischer Objekttisch, ein Okular, eine Objektivlinse, Höhe 13 Zoll (33 cm), mit Lebendzelle und Pinzette in Mahagonikasten, Unterteil mit Schublade für Objektträger. Start Price: EUR 280

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Koeln, NRW, DE

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