Accession No

3793

Brief Description

polarimeter, by Laurent and A. Jobin, French, 4/4 19th Century

Origin

France; Paris; rue de l’Odion

Maker

Laurent Jobin, A

Class

optical

Earliest Date

1875

Latest Date

1900

Inscription Date

Material

metal (brass, iron); glass; wax

Dimensions

length 550mm; minimum height 495mm

Special Collection

Provenance

Inscription

‘Laurent succr de. Soleil
rue de l’Odion, Paris
A. Jobin succr’ (on index arm)
‘POLARIMETRE-LAURENT’ (analyser circle)

Description Notes

Cast iron tripod base with brass column supporting brass and black-painted brass polarimeter on alt-azimuth mount, locked by knurled screw. Top half of casing for specimen tube is missing. Brass specimen tube with two sprung push-fit ends. Screw-fit eyepiece. Analyser has serrated edge degree scale divided [45] - 0 - 90˚, numbered by 10˚ graduated to 30´. Second scale divided 200 - 0 - 400, numbered by 20, graduated to 1. Vernier with section for each scale moves over the main scale and has a reading glass.

Incomplete (cover for specimen tube missing)

References

Events