Late 19th century Wye level with compass, by Troughton & Simms, London

The "Y" level, also known in British parlance as a "Wye" level, is a surveying instrument used for determining elevations. It combines a large spirit level mounted in parallel to a removable telescope in Y-shaped supports. A surveyor's compass is included for precise directional sightings. This wye level was manufactured by the well-known British firm of Troughton & Simms, London.

Troughton & Simms was formed when Edward Troughton took William Simms as a partner in 1826. The firm continued in several combinations of the two families until 1922, when they merged with T. Cooke and Sons Ltd. of York and renamed the company Cooke, Troughton & Simms. This level was probably made in the late 19th century. It is in full working order, all optics are intact and original, and the lacquer coating has been renewed

15" long fully extended
Circa 1880 - 1900
No. 1700

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