Thirteen-arm parallel rule

Thirteen-arm parallel rule, probably French, mid 19th century

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Thirteen-arm parallel rule, probably French, mid 19th century
Science Museum Group
© The Board of Trustees of the Science Museum

Thirteen-arm parallel rule, probably French, mid 19th century

Details

Category:
Mathematics
Object Number:
1993-114
type:
rules (drawing) and parallel rules
credit:
Tesseract