Accession No

4602

Brief Description

brass ruler for use with different scales (e.g. on maps), by J. H. Steward, English, 2/2 19th Century

Origin

England; London

Maker

J. H. Steward

Class

drawing

Earliest Date

1850

Latest Date

1900

Inscription Date

Material

metal (brass)

Dimensions

length 319mm; breadth 38mm; thickness 3mm

Special Collection

Provenance

Purchased on 03/03/1996.

Inscription

‘J. H. Steward, London.’ (one side)

Description Notes

Brass rule, one side with different decimal scales, the other with different imperial scales.
Decimal side: scale with 200 divisions in a foot, divided 100 - 0 - 100, numbered by 10, subdivided to 1; scale with 60 divisions in a foot, divided [1] - [0] - [59], numbered by 2, subdivided to 1, first section subdivided to 0.1 (these two scales marked ‘50’); scale with 100 divisions in a foot, divided 50 - 0 - 50, numbered by 10, subdivided to 1; scale with 30 divisions in a foot, divided [1] - [0] - [29], numbered by 2, subdivided to 1, first cm subdivided to 1mm (these two scales marked ‘25’).
Other side: scale with 120 divisions in a foot, divided 60 - 0 - 60, numbered by 10, subdivided to 1; scale with 36 divisions in a foot, divided [1] - [0] - [35], numbered by 2, subdivided to 1, first section subdivided to 0.1 (these two scales marked ‘30’); scale with 240 divisions in a foot, divided 120 - 0 - 120, numbered by 10, subdivided to 1; scale with 72 divisions in a foot, divided [1] - [0] - [71], numbered by 2, subdivided to 1, first section subdivided to 0.1 (these two scales marked ‘60’).

Complete.

References

Events