object
Proportional dividers
A named adjustable crossed-leg divider for enlarging or reducing ratios. Not published nautical-dividers, not a sector alone, and not a slide-rule.
Also known as Ratio dividers · Reduction dividers
object
A named adjustable crossed-leg divider for enlarging or reducing ratios. Not published nautical-dividers, not a sector alone, and not a slide-rule.
Also known as Ratio dividers · Reduction dividers