~GOOD GEORGIAN THREAD COUNTER/LOUPE~

~GOOD GEORGIAN THREAD COUNTER/LOUPE~

$130 USD (100 GBP) postage included

A good Georgian thread counter similar to a telescope eyepiece c.1820

Dimensions

55 x 35 mm.

Circa

1820

Maker

unbranded

Country of manufacture

UK and Ireland

Categories: Calculating, Microscopy, Mineralogy & Gemmology, Natural history, Scales Weights & Measures, Engineering antiques, Office Antiques, Tools, Monoculars

Description

A good Georgian thread counter/loupe with early roping/knurling of the brass c.1820.

Identical to a telescope eyepiece of the era with sliding ocular lens protector. 1 1/4 inch (35 mm) diameter with square slot at object end. 1 5/8 inches (40 mm.) closed, 2 1/4 inches fully drawn (55 mm.). For security and ease of use, the eyepiece does not withdraw completely i.e. there is a mechanical stop in the barrel. Excellent optics with 10X magnification. Great design for pocket use. Could be used for a variety of hobbies. Square hole insert can be removed to use as a simple loupe. Small area of verdegris on barrel. No case.

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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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