A Regency mahogany cased surveyor's circumferentor, by J.Raxter, Birmingham, first-quarter 19th century, the silvered dial with eight-point rose and 0-360 scale, inscribed J.Raxter, Birm, on brass mounted tripod stand, 17cm square, tripod approx...

A Regency mahogany cased surveyor's circumferentor, by J.Raxter, Birmingham, first-quarter 19th century, the silvered dial with eight-point rose and 0-360 scale, inscribed J.Raxter, Birm, on brass mounted tripod stand, 17cm square, tripod approx. 103cm total Note: Before the theodolite came into common use the instrument most often carried by Land Surveyors to measure horizontal angles was the circumferentor. This consisted of a large conventional compass, fitted with a pair of sights and mounted on a tripod. Despite its comparative lack of accuracy it continued to be preferred in America, and other heavily forested areas where the sight lines were more likely to be obscured. Please note Roseberys do not guarantee the working condition of scientific instruments offered for sale.
Please refer to department for condition report