FINE QUALITY QUADRUPLE-EYEPIECE THREE-DRAW MONOCULAR

FINE QUALITY QUADRUPLE-EYEPIECE THREE-DRAW MONOCULAR

Stock Number: 8078

$1900.

For sale, antique early 19th century monocular of silver plate over copper and brass. This is a complex small instrument with rolled and soldered tues, double achromatic objective, and wheel of eye lenses. The maker was Plofsl of Vienna

Dimensions

3-1/4" to 8-1/4" (8 - 21 cm)

Circa

c. early 19th century

Country of manufacture

Other

Categories: Scientific, Telescopes, Monoculars

Description

QUADRUPLE-EYEPIECE THREE-DRAW MONOCULAR, Austrian, early 19th century, signed “Plofsl in Wien.” Opening from 3-1/4″ to 8-1/4″ (8 – 21 cm) and constructed of silver plated brass and copper, this small telescope is fitted with a cemented doublet achromatic objective, and a wheel of four selectable eye lenses. The tubes are rolled and soldered, not drawn. It offers upright images of high magnification but with a small field of view. Condition is fine noting negligible dents and a tiny edge chip to the lens. There is no handle or mount. The original shaped wood case is lined in purple silk and bound in red Morocco leather. Georg Simon Plossl (1794 – 1868) trained with the Voigtlander optical firm in Vienna, founding his own workshop in 1823. By 1845 he employed no less than 36 workers, and was famous for the quality of his microscopes and telescopes. 

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US TESSERACT

David and Yola Coffeen both have enjoyed academic careers, as planetary astronomer and as linguist/educator. But since 1982 (yes, 1982!) they have been full-time dealers in early scientific and medical instruments, under the name Tesseract. Selling primarily by catalogue (over 100 issued so far) they also have a web presence at www.etesseract.com, and can be contacted at mail@etesseract.com.

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