Accession No

2574

Brief Description

spectroheliograph slits (pair), Ottway, 1850-1900 (c)

Origin

Maker

Ottway

Class

optical

Earliest Date

1850

Latest Date

1900

Inscription Date

Material

metal (steel, brass); wood

Dimensions

box height 310mm; breadth 160mm; depth 165mm

Special Collection

Provenance

Transferred from Institute of Astronomy, University of Cambridge, Cambridge, England, 5/6/1980. South Kensington (one).

Inscription

‘SPO 153’ (one marked)

Description Notes

Pair of spectro-heliograph slits. Both with steel jaws and width adjustable by lever, moved against spring by screw. Lever mechanisms different. Brass. Both with single draw tube, one with linear scale, cast brass mounting rim with bolt holes (both). Wooden box.

References

Events