Trone Trones n.
  1. A steelyard. [Prov. Eng.]
  2. A form of weighing machine for heavy wares, consisting of two horizontal bars crossing each other, beaked at the extremities, and supported by a wooden pillar. It is now mostly disused. [Scot.]
  Trone stone, a weight equivalent to nineteen and a half pounds. [Scot.]
  Trone weight, a weight formerly used in Scotland, in which a pound varied from 21 to 28 ounces avoirdupois.
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