Accession No

2798

Brief Description

microscope, comparator, by Carl Zeiss, German, 1890 (c)

Origin

Germany; Jena

Maker

Carl Zeiss

Class

microscopes

Earliest Date

1890

Latest Date

1890

Inscription Date

Material

metal (oxidized brass, brass); glass; wood

Dimensions

length 367mm; breadth 165mm; height 364mm box length 408mm; breadth 220mm; height 430mm

Special Collection

Provenance

Transferred from Institute of Astronomy, University of Cambridge, Cambridge, England, 09/1981.

Inscription

‘Carl Zeiss, Jena
No. 1798’
‘ZEISS COMP. B1909’ (painted on box)

Description Notes

Comparator with 2 micrometer microscopes on oxidized brass mountes, one microscope for reading standard scale, the other for the object: both have eyepieces on draw tubes, the latter only can be focussed by rack and pinion moving the microscope. Both drumheads divided to 100 parts. Brass bed mounted on cast tripod stand, slide plate moved by hand or by screw, with clamping screw. Object slide plate moveable independently of scale by screw. Standard scale of 100mm divided on stell to 0.1mm and by micrometer microscopes to 0.001mm. Fitted wooden box.

References

Events