Title
Sighting transit protractor
DateCirca 1850
Mediumwood, steel
Dimensions18 3/8 × 9 3/8 in. (46.7 × 23.8 cm)
Object number1956.18
Institutional Credit LineCourtesy of the New Bedford Whaling Museum
DescriptionAn unmarked wooden, semicircular surveying protractor with an adjustable pointer having two sighting vanes. The protractor graduations are hand-stamped. The protractor has a steel pivot pin. Includes tripod stand. On View
Not on view
Circa 1840
Spencer & Co.
Circa 1880
Pierce, Ebenezer
