Three-foot folding rule with logarithmic slide

Made:
1752 in London
maker:
John Fry
SMG00049155 Three-foot folding rule with logarithmic slide, John Fry Three-foot folding rule with logarithmic slide, John Fry

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

License

SMG00049155
Science Museum Group
© The Board of Trustees of the Science Museum

Three-foot folding rule with logarithmic slide, John Fry
Science Museum Group
© The Board of Trustees of the Science Museum

Three-foot folding rule with logarithmic slide, John Fry
Science Museum Group
© The Board of Trustees of the Science Museum

Three-foot folding rule with logarithmic slide, John Fry, London, 1752.

Details

Category:
Mathematics
Object Number:
1915-299
Materials:
wood (unidentified) and brass (copper, zinc alloy)
Measurements:
folded: 18 mm x 240 mm x 29 mm,
type:
folding rule and slide rule
credit:
Mr W. Bentley Capper