Accession No

1550

Brief Description

black glass polariscope, by Dollond, English, 1/4 19th Century

Origin

England; London

Maker

Dollond

Class

optical

Earliest Date

1800

Latest Date

1825

Inscription Date

Material

wood; metal (brass, oxidised brass); glass

Dimensions

length 440mm; breadth 140mm; height 150mm

Special Collection

Cavendish collection

Provenance

Transferred from the Cavendish Laboratory, University of Cambridge.

Inscription

‘Dollond
London’

Description Notes

Black-painted wooden base with black glass mounted at an angle at one end. Small biconvex lens set in middle of base in line with a stand carrying an angled lens arrangement which can be rotated by means of a knurled screw which carries degree scale divided [0] - 360˚, numbered by 10˚, subdivided to 1˚.

Condition fair (some chipping of paint on black glass); complete.

References

Events