Accession No

1493

Brief Description

microscope objective lens with immersion front, by Powell and Lealand, English, 1870 (c)

Origin

England; London

Maker

Powell & Lealand

Class

microscopes

Earliest Date

1870

Latest Date

1870

Inscription Date

Material

metal (brass); glass

Dimensions

length 58mm; maximum diameter 30mm

Special Collection

Provenance

Inscription

‘POWELL & LEALAND’

Description Notes

1/25 brass objective lens; 3-element objective each in a separate screw fit cell; the outer one of which can be replaced by an ‘Immersion’ front in a screw brass case.
Collar graduated (0)-(50) by 10 to 1 cases marked 1/25.

References

Events