Brass sector, 6 1/2", French, early example

Made:
France
Brass sector, 6 1/2, French, early example'

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Brass sector, 6 1/2, French, early example'
Science Museum Group
© The Board of Trustees of the Science Museum

Brass sector, 6 1/2", French, early example

Details

Category:
Mathematics
Object Number:
1922-255
type:
proportion drawing instruments and sectors
credit:
Lt. James F. Godwin