2 one-metre Comparison bars

Made:
1908

2 one-metre Comparison bars, in wooden case, early 20th century

Details

Category:
Surveying
Object Number:
1995-233
Materials:
bars, steel and box, wood, deal
Measurements:
bars: length 100 mm
type:
comparison bars
credit:
Christie's South Kensington Limited

Related Objects

Map of Oxfordshire, 2nd edition, by William Smyth

Map of Oxfordshire, 2nd edition, by William Smyth
Illustration showing map-making from the air, c. 1965

Illustration showing map-making from the air
Two photographs of triangulation beacons, Nigeria Survey, 1910-1912

Two photographs of triangulation beacons
Stadia staff, patent no.843285 of 1958, to allow tachyometers to be used for large scale work, one prototype, two production models

Stadia staff
11 inch altazimuth theodolite with telescope tube of square section, by Thomas Heath, London, England1720-1753

11 inch altazimuth theodolite with telescope tube of square section
Steward telemeter No.491, in case, marked "not for sale", 1910-1920

Steward telemeter No.491