American computational gauging rod and rule, c. 18

Made:
1870-1880 in United States

American computational gauging rod and rule, c. 1875, patented (US PatentNo.101,309) by Eli S. Prime in 1870.

Details

Category:
Mathematics
Object Number:
1992-10
type:
scale (excise), gauging rod (excise)
credit:
Tesseract
status:
Permanent collection

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