Parallel rule

Parallel rule, 6-inch

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Parallel rule, 6-inch
Science Museum Group
© The Board of Trustees of the Science Museum

Parallel rule, 6-inch, ivory and electrum (double parallelogram form)

Details

Category:
Mathematics
Object Number:
1876-503
Materials:
ivory and electrum
type:
rules (drawing) and parallel rules
credit:
W.F. Stanley and Company