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Rolling Parallel Rule by Troughton & Simms c1890

Name: Rolling Parallel Rule By Troughton & Simms C1890
SKU: as930a409
Price: 135.00 GBP
Availability: SoldOut

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A quality mahogany cased brass rolling parallel rule by Troughton & Simms c1890. Period instrument of solid brass construction with attractive aged patina. In original fitted mahogany case with pinned dovetail corners - an indicator of the quality of construction. These were supplied for technical drawing or navigational purposes. Upper side to baseplate stamped Troughton & Simms London. The rule is 46 cm in length and 7 cm in depth. Case measures 49.5 cm by 10 cm and 4.25 cm in height.
This rolling rule is in excellent used condition commensurate with age. Rolling mechanism functions perfectly. Brass in used and aged condition. Mahogany case is solid. Knocks and marks external to case as would be expected. Please see images as these form an important part of the description.

Troughton & Simms was a British instrument-making firm formed when Edward Troughton and William Simms entered into partnership in 1826. Edward Troughton (1756-1835) had learned his trade from his uncle, John Troughton, a leading instrument maker in London – and had also worked with his equally talented brother, John Troughton (1739-1807). William Simms (1793-1860) apprenticed under a Mr. Bennett, a London based mathematical instrument maker of considerable ability and reputation. He subsequently started a business on his own making theodolites for the Board of Ordnance. Troughton & Simms produced high quality astronomical instruments and drawing instruments used around the world. In 1876, they supplied the Imperial Standards of Length gauges mounted at Trafalgar Square in London UK. The company became a limited company in 1915, trading as Troughton & Simms Ltd, and in 1922 merged with T. Cooke & Sons to form Cooke, Troughton & Simms (which became a subsidiary of Vickers in 1924). In 1963 the company became part of the newly formed Vickers Instruments which continued until 1988. Viewing welcomed - please contact us in advance.
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Price

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The price has been listed in British Pounds.
Conversion rates as of 21/NOV/2024. Euro & Dollar prices will vary and should only be used as a guide.
Always confirm final price with dealer. SOLD

Shipping information

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