Seed calculator by Elsoms Ltd, c. 1965

Made:
1965
Seed calculator by Elsoms Ltd, c. 1965

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Seed calculator by Elsoms Ltd, c. 1965
Science Museum Group
© The Board of Trustees of the Science Museum

Seed calculator by Elsoms Ltd, c. 1965

Details

Category:
Mathematics
Object Number:
1994-1047
type:
ready reckoner (seed)
credit:
Mr F.N. Franks