Accession No

2183

Brief Description

Ferguson’s solar chronometer, by J. H. Steward, English, 1/4 20th Centry

Origin

England; London; 406 Strand

Maker

J. H. Steward Ltd.

Class

dials

Earliest Date

1900

Latest Date

1925

Inscription Date

Material

wood (oak); metal (oxidised white metal); paper; cloth (felt)

Dimensions

height 114mm; length 186mm; breadth 145mm

Special Collection

Provenance

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

Inscription

‘FERGUSON’S
SOLAR
CHRONOMETER’
‘J.H. STEWARD CO.
406, STRAND,
LONDON.’ (metal plaque)
‘Standard Time’ (on paper scale)

Description Notes

Oak base; dial in oxidised metal in the form of a half cylinder set on a universal ball joint, with a combined plumb-bob /latitude arc index, divided 0 - 70˚, numbered by 10˚, divided to 1˚. Paper scale for January to June or June to December, calibrated to allow for the equation of time, and adjustable to 10˚ either side of the standard meridian.
(Scale divided VII-XII, I-V, numbered by I, divided to 10 minutes (June to December). Months named and divided to 10 days; 3-2-2000).

Condition: fair; complete.

References

Events