Accession No

2127

Brief Description

transit instrument by Troughton & Simms, c.1860 (?)

Origin

London; England

Maker

Troughton & Simms

Class

astronomy

Earliest Date

Latest Date

Inscription Date

Material

metal (brass); glass

Dimensions

shelf space length 700mm; breadth 800mm; height 140mm

Special Collection

Provenance

Transferred from Institute of Astronomy, University of Cambridge, Cambridge, England, 10/1975.

Inscription

‘Troughton & Simms
LONDON’ (surviving vernier bar)

Description Notes

Portable transit instrument, brass, painted. Stand and one telescope have modern silver paint, the other telescope painted cream. Stand in 3 parts, held together by knurled screws. Ring base with diameter bar, 2 levelling screws with clamps and 1 screw and clamp missing. Two reinforced uprights with slow motion screws. Acquired with 2 telescopes, axes and vertical circles, both with diagonal eyepieces, axis illumination for cross hairs, object glass cover and circles divided on brass 0 - 90˚ four times, subdivided to 1˚ and 30´. One with 2 verniers and bubble level.

Condition

References

Events