~FINE FRENCH SEXTANT-ORIGINAL BLUING, LORIEUX~

~FINE FRENCH SEXTANT-ORIGINAL BLUING, LORIEUX~

275 Euro (225 GBP or $300 USD) + postage

A fine and original French sextant by Lorieux/Hurlimann c.1850

Dimensions

27 x 20 cm.

Circa

1850

Maker

Lorieux/Hurlimann

Country of manufacture

France

Categories: Navigational instruments, Calculating, Surveying Instruments & Mining, Engineering antiques, Office Antiques

Description

A fine and original French sextant with some unusual features and early serial number. Signed E. Lorieux, A. Hurlimann, sucr. a Paris (78), this sextant has a radius of 20 cm. with an arc circle of 27 cm. and a silvered scale measuring from -5 to + 165 degrees. Very odd construction with many innovations of the day including cast ladder frame body in bronze, a blued brass radius arm with vernier from 0-10 seconds of arc. The arc circle is engine divided in 10 minute increments and the entire scale (including the vernier) can be magnified using the multi-hinged lens on rotating arm. All 4 round filters (red, green, blackened and clear) are intact as are the secondary and primary (pentagonal) mirrors. The instrument sits atop three tapering legs and is hand held by a shaped fruitwood handle. The arm locks by screw below the frame and the vernier moves by double ended worm and screw (tangent). The glass filter/protective shield for the vernier now missing, as is the case having the additional eyepieces (sighting tube only) which moves vertically by threaded height adjustment. Tiny bruise on arc circle. Great office display piece.

Edmond Lorieux was a fine French instrument maker in Paris from 1825-1845(50) when the business was transferred to A. Hurlimann (successor) until about 1890. The early serial number (78) would indicate construction was ~1850. An unusual combination of French scale divisions and German engineering techniques. 

 

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CA ScientificaOpticae

Scientifica Opticae

Mark Hacking (Scientifica Opticae Inc.) has been an avid collector/dealer for over 30 years. A former Science teacher, he has an innate love for anything natural or mechanical. Specializing in optical (microscopes, telescopes), surveying, medical, weighing and drawing instruments, he is an active participant of the Scientific Instrument Fair in London. Living in Stratford, Ontario, Canada, with his wife and two children; Mark looks forward to meeting as many fellow collectors as possible, and has a worldwide following on eBay (Sciopti).

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