Rolling Parallel 9-Inch Rule

Made:
1845-1850 in England
Rolling Parallel 9-Inch Rule

Rolling Parallel 9-Inch Rule
Science Museum Group
© The Board of Trustees of the Science Musuem

Rolling parallel 9-inch rule, made by Thomas Underhill.

Details

Category:
Mathematics
Object Number:
Y1987.241.3.2
Materials:
wood (unidentified) and ivory
Measurements:
overall: 17 mm x 239 mm x 49 mm,
type:
parallel rule - drafting tool
credit:
Purchased From Prudential Fine Art Auctioneers