REMARKABLE COMPACT ALL-TRIPLE-LENS BINOCULARS

REMARKABLE COMPACT ALL-TRIPLE-LENS BINOCULARS

Stock Number: 9030

$1350.

For sale, antique French 19th century binoculars, with 12 triplets lenses to minimize aberrations and permit short-focal-length. Superb condition with original case.

Dimensions

3-7/8" (10 cm) overall and 1-1/8" (3 cm) thick (closed)

Circa

c. 1875

Country of manufacture

France

Categories: Scientific, Other Technology Antiques, Opera Glasses

Description

REMARKABLE COMPACT ALL-TRIPLE-LENS BINOCULARS, French, c. 1875, engraved “Douze Verres” (for “Twelve Lenses”) and signed in the case “Gregoire Opticien, Quai St. Antoine, 14.” Measuring 3-7/8″ (10 cm) overall and 1-1/8″ (3 cm) thick (closed), they are constructed of gilt brass, with a central knurled  focusing knob. Each objective lens, and each eyepiece, is itself a triplet, a sophisticated design to minimize aberrations and permit a compact, short-focal-length instrument. The apparent maker was Gregoire of Lyon, working throughout the third quarter 19th century. The firm had been founded in 1790, owned by Pierre Biette in the 1830’s, and by H. Peter in the late 19th century. A fine device, in superb condition, with the original carrying case. 

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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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