Accession No

2187

Brief Description

Major W. Verner’s rapid sketcher, by J. H. Steward, English, 1929 (c)

Origin

England; London; 406 Strand

Maker

J. H. Steward

Class

surveying

Earliest Date

1929

Latest Date

1929

Inscription Date

Material

metal (brass, oxidised brass); wood (boxwood); glass; rope (string)

Dimensions

length 153mm; breadth 76mm

Special Collection

Provenance

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

Inscription

‘Major. W. Verner’s. Complete Sketching Instrument.’ (obverse)
‘Patent No 225.
j.h. steward
406 strand
london’ (obverse underneath bubble levels)

Description Notes

Boxwood rectangle. Extending oxidised brass alloy slit and window sights. Brass semicircle with indicator arm moving over scale engraved on boxwood, divided 60˚ - 0 - 60˚, numbered by 10˚, graduated to 1˚. Bubble levels with mutually perpendicular axes in brass box mounted in one corner (later addition (?)); compass in another corner graduated [0] - 36[0]˚, numbered by 10˚, graduated to 5˚; 16-point compass rose.
Bevelled sides: 3 divided [0] - [180˚] and back [180˚] - [360˚], numbered by 10˚, graduated to 1˚. Fourth side divided 0 - 28 in one direction and 0 - 14 in the other (yards at 3 inches and 6 inches to the mile). Brass cap for compass.
On reverse: scales of degrees of slope; no of yards at 1 inch, 4 inch, 6 inch and 8 inches to 1 mile; approximate gradient; scale of links. Formulate for calculating given scale in inches to the mile; vertical interval in feet; degress of slope. Horizontal equivalent. Scale of diagonal inches.

Condition good; complete.

fair condition with compass broken

References

Events