Image
Category
Collection
Maker
On Display
Object type
Place
Material
Date

Silver sector signed by Culpeper

1700-1737

12 inch architectonic sector in ivory and silver

1733-1795

Sector, 6"; brass; engraved "Culpeper Fecit"

1700-1759

Wooden sector, radius 4 1/2 inches

Wooden sector, radius 4 1/2 inches

Wooden sector, radius 4 1/2 inches

Silver sector

1740-1760

Boxwood sector

Six inch ivory sector by John Cail

1825-1848

Sector with scales of chords and equal parts combined with quadrantal protractor or clinometer

1700-1799

Brass sector with decorative endpoints

A brass sector (Gunter's pattern), early 17th century

1600-1625

Brass sector, by Butterfield

Sector by Thomas Jones

1816-1850

Six inch sector by R.B. Bate, London, 1809-1840.

1809-1840

Brass sector engraved "J.Sisson London"

1722-1783

Gunter type

1620-1700

4 1/2-inch ivory sector

5 1/2-inch ivory sector

Six inch boxwood sector by Holtzapffel & Co.

Sector by Troughton

1801-1830

Brass sector, 6 1/2", French, early example

Brass sector, by Martel, Geneva

Sector by Bion

1700-1720

Wooden sector, radius 4 1/2 inches

Wooden sector, radius 4 1/2 inches

Wooden sector, radius 4 1/2 inches

4 1/2 inch boxwood sector by Holtzapffel & Co.

Sector dividing circle and straight line into equal parts

Surveyor's sector

Ivory sector by W. Elliott & Sonst

1850-1853

Brass sector to the design of N. Goldman

1723

Ivory sector by Isaac Carver

1668-1713

One 6-inch brass sector for fortification and gunnery

1675-1700

Six inch brass sector

Brass sector with semicircular arc and two folding slit sights

Maginnis's universal sector

Sector 6-inch, brass, engraved "M. Berge, London"

1800-1819

Gunmetal sector

Sighting sector/dividers probably Dutch or German

1600-1700

Sector by Butterfield

1680-1724

12 inch brass sector by Potter, Poultry, London

1851-1876

Two ivory sectors by Holtzapffel & Co., 64 Charing Cross (B502; A54794)

Two ivory sectors by Holtzapffel & Co.

1839-1865

Two sectors by W.F Stanley made respectively of ivory and boxwood, c.1876.

Two sectors by W.F Stanley made respectively of ivory and boxwood

1876

Six identical wooden sectors, radius 4 1/2 inches, stamped "Holtzapffel & Co 64 Charing Cross", B4355

Six identical wooden sectors

1839-1865

Boxwood sector, two foot; early example

Boxwood sector, two foot; early example

Reproduction of Galileo's brass sector

Reproduction of Galileo's brass sector

1965

Collection of two boxwood sectors by Holtzapffel & Co. (B518)

Two boxwood sectors by Holtzapffel & Co.

1839-1865