Accession No

2926

Brief Description

brewer’s slide rule, for use with saccharometer, by Dring and Fage, English, 4/4 19th Century

Origin

England; London; Tooley Street

Maker

Dring and Fage

Class

calculating

Earliest Date

1900

Latest Date

1900

Inscription Date

Material

wood (boxwood); ivory; metal (brass)

Dimensions

length 337mm; breadth 47mm

Special Collection

Provenance

Purchased from Christie’s, South Kensington, London, England; lot 161, 09/12/1982.

Inscription

‘DRING & FAGE MAKERS TOOLEY ST LONDON’

Description Notes

Brewer’s slide rule, for use with saccharometer, by Dring & Fage, English, 4/4 C19th.

Boxwood with short ivory slide; reinforced brass ends; 4 sets of scales, 2 either side of slide for SPECIFIC GRAV A [0] - 50; B 12 - 32; C 65 - 125; D 100 - 160; PROOF SP. Pr.. Ct. A 1 - 12; B 8 - 20; C 16 - 29; D 24 - 39; D.EX Pr BARLL. A [0] - 45; B 30 - 80; C 60 - 115; D 95 - 115; D.EX.Pr CENT A 1 - 12; B 8 - 20; C 16 - 28; D 23 - 36; DENSITY A [0] - 19; B 12 - 32; C 24 - 45; D 37 - 60. Slide divided C 50 - 150 and D 50 - 150.

References

Events