Collection

Ready reckoner (currency)

Made:
1972-1976 in England
One of four ready reckoners

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One of four ready reckoners
Science Museum Group
© The Board of Trustees of the Science Museum

One of four ready reckoners, for assisting the conversion from L.s.d. to decimal currency, sponsored by the Daily Telegraph newspaper. A paper and card dial with moveable cursor, namely the prototype for ready reckoner 1976-430/1.

Details

Category:
Mathematics
Object Number:
1976-430/4
Materials:
card, paper, cord and complete
Measurements:
overall: 1 x 115 mm
type:
ready reckoner (currency)
credit:
Science Museum (Great Britain)

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