Accession No

3141

Brief Description

clinometer, De Lisle’s reflecting, Armstring.Thomas, 1914

Origin

Manchester; England

Maker

Thomas Armstrong & Brother

Class

surveying

Earliest Date

1914

Latest Date

Inscription Date

1914

Material

metal (brass, alloy, bronze); glass; hide (leather)

Dimensions

case length 155mm; breadth 85mm; thickness 40mm

Special Collection

Provenance

Donated.

Inscription

‘THOMAS ARMSTRONG & BRO.
MANCHESTER
NO1411
1914.’
‘J.A. JACOBS & CO Ltd. 1916’ (on case)

Description Notes

Heavy brass semicircle, divided 5-50 by 5 attached through vertical axis to metal alloy square frame divided vertically in half by reflecting mirror; arc swivels into plane perpendicular with mirror counter weighted arm slides over scale on arc mark ‘1 in’; bronze shackle; leather case with lid and buckle.

References

Events