Accession No

2161

Brief Description

artillery director, No. 5 Mk I, by T. Cooke and Sons Ltd., English, 1917

Origin

England; London and York

Maker

T. Cooke and Sons Ltd.

Class

military; optical

Earliest Date

1917

Latest Date

1917

Inscription Date

1917

Material

metal (alloy, brass); rubber; glass

Dimensions

length 350mm; breadth 165mm; height 195mm

Special Collection

Provenance

Transferred from Department of Geography, University of Cambridge, Cambridge, England, 05/1969.

Inscription

‘DIRECTOR No 5 MK I No 3910
T COOKE & SONS Ltd LONDON & YORK
1917’ (on edge of base)

Description Notes

Metal alloy. Black finish with brass scales. Telescope, sliding eyepiece focus. Rubber eye shade. Folding slit and window sights. Bubble on left of telescope. Hinged mirror over. Levelled by screw on scale graduated 10-0-10o to 1o degree of depression and elevation and micrometer screw to 1’.
Vertical scale on quadrant fixed to telescope axis. Graduated 50-0-50o. Elevation and depression. Micrometer screw reads to 5’. Clamp for vertical movement.
Horizontal circle graduated 0-180-0 left and right to 1o. Micrometer screw reads to 5’. Clamp for horizontal circle. 2 bubbles with mutually perpendicular axes. Trough compass.

References

Events