Troughton & Simms. London. 19th century brass Theodolite.
Troughton & Simms. London. 19th century brass Theodolite.
Troughton & Simms. London. 19th century brass Theodolite.
Troughton & Simms. London. 19th century brass Theodolite.
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  • Load image into Gallery viewer, Troughton & Simms. London. 19th century brass Theodolite.
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Troughton & Simms. London. 19th century brass Theodolite.

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Troughton & Simms. London. 19th century brass Theodolite.

Signed:Troughton & Simms. London.

Height:43cm.

Established in 1826 by Edward Troughton & William Simms their shop in Fleet Street became the hub of the finest scientific instrument made in London, in a period in which there was an expanding demand for precision instruments, for astronomy, surveying and precision measurement. They made instruments for Greenwich Observatory, for imperial surveys and exploring expeditions. 

Troughton and Simms made several of the main instruments for Melbourne Observatory, including an 18 inch azimuth used of the Geodetic Survey, portable transit instrument (circa 1850), zenith sector (1860), a 4.5 inch equatorial telescope (1862), an 8 inch equatorial telescope (1874) spectroscope (1877) and an 8 inch transit instrument in (1884). While the firm had an excellent reputation for quality the company exasperated many of its customers with delays of years in delivering some instruments.