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Image © National Museums Scotland
View full screenHinged slide rule for use in the cotton mill industry, used to calculate yarn counts, measure cotton and draughts of mules, instructions for use are stamped on the reverse, made of wood with a sliding brass inlaid measure, designed by William Slater, Bolton mid 19th century
T.1985.57
Slater, William, Designer
Bolton, Lancashire, England, Northern Europe
Mid 19th century or later
Designer: Slater, William