White & Bean's area scale on transparent celluloid

Made:
1907 in London
supplier:
C F Casella and Company Limited
White & Bean's area scale on transparent celluloid

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White & Bean's area scale on transparent celluloid
Science Museum Group
© The Board of Trustees of the Science Museum

White & Bean's area scale on transparent celluloid

Details

Category:
Mathematics
Object Number:
1907-103
type:
ready reckoner
credit:
C F Casella & Company