Double cranks for architectural drawing

Made:
London
Double cranks for architectural drawing, ivory and ebony

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Double cranks for architectural drawing, ivory and ebony
Science Museum Group
© The Board of Trustees of the Science Museum

Double cranks for architectural drawing, ivory and ebony, signed by the inventor Joseph Jopling, Somerset Street, Portman Square, London, in original box (distressed)

Details

Category:
Mathematics
Object Number:
1985-2151
Materials:
ivory and ebony
type:
curve drawing instruments and crank pens
credit:
Delehar, P.