Accession No

1492

Brief Description

three microscope objectives, by Andrew Ross, English, 1855 - 1875

Origin

England; London

Maker

Ross, Andrew

Class

microscopes

Earliest Date

1855

Latest Date

1875

Inscription Date

Material

metal (brass); glass

Dimensions

1492.1 length 34mm; diameter 28mm; 1492.2 length 56mm; diameter 32mm; 1492.3 length 65mm; diameter 32mm

Special Collection

Provenance

Inscription

1492.1:
‘In
A. Ross,
London’ (on case)
1492.2:
‘Ross London’ (signed)
‘1/5 In Ross London’ (on case)
1492.3:
‘Ross, London
Patent 1/2 In’ (signed)
‘1/2 In
Ross
London’ (case)

Description Notes

1492.1:
1” compound objective; screw fit cell containing lens; brass collar and ferrule; brass case.
1492.2:
1/5” compound objective; graduated collar 0-15 by 5 to 1; marked ‘Wet’, ‘Covered’ and ‘Uncovered’; brass case.
1492.3:
1/2” compound objective; graduated collar 0-15 by 5 to 1; marked ‘uncovered’, ‘covered’; cone shaped nose; brass case.

References

Events