Folding Rule

Made:
1915-1925 in United Kingdom
Folding twenty inch rule
Photographed on a white background. Folding Rule

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Folding twenty inch rule Photographed on a white background.
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Folding Rule
Science Museum Group
© The Board of Trustees of the Science Musuem

Folding 20-inch rule, made by J Rabone & Sons.

Details

Category:
Mathematics
Object Number:
Y1998.47.3
Materials:
brass (copper, zinc alloy) and wood (unidentified)
Measurements:
open: 5 mm x 510 mm x 33 mm,
closed: 5 mm x 267 mm x 42 mm,
type:
folding rule
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
  • ruler - measuring device
credit:
Gift of Robert W. Anderson