Accession No

2753

Brief Description

position finder (station pointer), attributed to H. Hughes and Son, English, 1900 (c)

Origin

England; London [based on attributed maker]

Maker

H. Hughes and Son [attributed]

Class

surveying

Earliest Date

1900

Latest Date

1900

Inscription Date

Material

metal (brass); plastic; glass; wood (mahogany); cloth (felt)

Dimensions

box length 515mm; breadth 166mm; height 82mm

Special Collection

Provenance

Purchased from Sotherby's, London, England, Lot 192, 24/04/1981.

Inscription

‘McCombies Patent’
‘62’

Description Notes

McCombie patent position finder, brass. Openwork brass circle (undivided) with one fixed arm and on either side arms pivotting in central mount containing plastic disc with hole in centre. Fixed arm carries two mirrors on reinforcing brass piece, one fixed the other pivotting. The moving arms can be clamped in position on the circle and a mirror, pivotting in a mount on the far side of the circle from the fixed arm, can be linked, via a brass arm to either of the moveable arms and so move with them. This mirror has a sighting hole. Fitted mahogany box, the instrument resting in a felt-lined drawer, with 2 brass handles.

References

Events