Rolling type of Parallel rule with octagonal ends

Made:
1907
Parallel rule with octagonal ends, rolling type, by W.C

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Parallel rule with octagonal ends, rolling type, by W.C
Science Museum Group
© The Board of Trustees of the Science Museum

Parallel rule with octagonal ends, rolling type, by W.C.Harrison,1907

Details

Category:
Mathematics
Object Number:
1985-872
type:
parallel rule
credit:
Phyllis Harrison, D.