Patent protractor in form of set square

Made:
1885-1895
Patent protractor in form of set square

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Patent protractor in form of set square
Science Museum Group
© The Board of Trustees of the Science Museum

Patent protractor in form of set square, patented by Henry Marle in 1885 and "approved by the Science & Art Dept. South Kensington"

Details

Category:
Mathematics
Object Number:
1987-604
type:
drawing instruments and combined scale protractors
credit:
Delehar, P.