Brass 18-inch rolling parallel rule with adjustable line spacing device
- Made:
- 1866-1876
This image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseBrass 18-inch rolling parallel rule with adjustable line
Science Museum Group
© The Board of Trustees of the Science Museum
Brass 18-inch rolling parallel rule with adjustable line spacing device, by Elliott's patented 1866 and inscribed "Davies's Patent Proportional Parallel Rule", in mahogany case
