One of four ready reckoners, for assisting the conversion from L.s.d. to decimal currency

Made:
1972-1976 in England

One of four ready reckoners, for assisting the conversion from L.s.d. to decimal currency, sponsored by the Daily Telegraph newspaper. A circular plastic dial with moveable cursor.

Details

Category:
Mathematics
Object Number:
1976-430/1
Materials:
complete, plastic and plastic (unidentified)
type:
ready reckoner (currency)
credit:
Science Museum (Great Britain)

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