Brass slide rule in case, by Troughton, 7 1/2 " lo

Made:
1791 in London
maker:
J. & E. Troughton

Brass slide rule in case, by Troughton, 7 1/2 " long, 3/4" wide with one slide; engraved at ends on one side, "Troughton's London fecit", on other side, "John Booth Brush house 1791".

Details

Category:
Mathematics
Object Number:
1911-194
type:
slide rule
credit:
University of Sheffield, Dept. of Applied Science