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A four inch Broadhurst Clarkson & Co. brass refracting telescope on stand, English, circa 1900, with a fitted pine case, the telescope approximate...
An ivory combined magnetic compass and thermometer desk piece, English, 19th century, 14.5cm high, (a.f). Illustrated
A lacquered brass 'Stanley' theodolite, early 20th century, and a late 20th century 'Stanley' theodolite, both cased, (2).
A Japanese "Olympus" binocular microscope, late 20th century, with accessories, cased.
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