Boxwood Coggeshall folding slide rule, 1720-1730.

Boxwood Coggeshall folding slide rule, 1720-1730.
Boxwood Coggeshall rule, folding with slide, c. 1720-1730. Until the early 19th century slide rules were usually made for specific trades. This is a type of carpenter's rule.
 
Currently on display in:
Mathematics
Year made :
1720-1730
Inventory number :
1954-302
 

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