antik.it/Antique-measuring-instruments/8391-ANtique-Slide-Rule/
Code 8391
EUR 1600.00
In stock
1765550595Code 8391 ANtique Slide RuleAntique spiral slide rule made of wood, brass, and papier-mâché, designed by George Fuller of Belfast, professor of engineering at Queen's University, in 1878. It was made by Stanley in the late 19th century and is housed in its original mahogany box.
Good condition.
Box dimensions: 35.5 x 11 x 10.5 cm – 14 x 4.4 x 4.2 in
The logarithmic line of the ruler is arranged in a spiral on the surface of a cylinder, increasing the length of the scale and thus making the calculation more precise. The logarithmic line is composed of 50 turns, and all four-digit numbers have a mark on the scale, or are intermediate between two marks, so that exact four-digit results are easily obtained. This type of ruler was the most successful: it was equivalent to eight times the length of a rectangular ruler and could be read to three to four decimal places.
William Stanley 1829-1909
The son of a mechanical engineer, he began working with his father in 1849, immediately improving technical drawings and simultaneously creating new instruments.
The study of drawing instruments was in keeping with the demands of the Industrial Revolution. Throughout the world, fields of activity such as surveying, engineering, architecture, and navigation were expanding at an ever-increasing pace. Vast areas, such as the Indian continent, were surveyed, while nautical charts of vast tracts of ocean were drawn. This climate of innovation led William Stanley to open his first workshop in Holborn, London, in 1854, for the production of drawing instruments.
FAQ
Do you provide an authenticity certificate/expertise?
Of course! The legislative decree n. 42/2004 stipulates that who sells works of art or historical and archaeological items has the obligation to deliver to the purchaser the documents attesting to the authenticity of the object, or at least to submit the documents relating to the probable attribution and origin. Antik Arte & Scienza provides an expertise (as warranty) that contains a description, period and assignment or the author, if known, of the item.
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What are the shipping terms and the delivery schedule?
Shipping by DHL or UPS is free (but if we are shipping to a country non-EU remember that any taxes and customs duties are on your expense), and items will be sent just after receiving of payment.
Italy: delivering on the average in 24 h.
Europe: delivering on the average in 2/3 weekdays.
Other countries: delivering on the average in 5 weekdays; custom duties charged to the buyer.
Is shipping insured?
Of course! Free insurance by Lloyd's London that covers almost all destinations.
If I change my mind, can I return the item?
Of course! (see our general terms for more information).
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Antique measuring instruments
Code 8391 ANtique Slide Rule
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