Fearnley's patent Universal calculator
Fearnley's patent Universal calculator, circular slide rule with cardboard scale in fitted mahogany case, unsigned, British,1880-1900. Used at the University Observatory, Cambridge, at Madingley Road, Cambridge, England.
- Materials:
- mahogany (wood) and cardboard
- Object Number:
- 1948-82/1
- type:
- slide rule
- Image ©
- The Board of Trustees of the Science Museum