The avoirdupois pound shall bear to the troy pound the relation of seven thousand to five thousand seven hundred and sixty. The hundredweight shall contain one hundred avoirdupois pounds, and the ton twenty hundredweight.
Mass. Gen. Laws ch. 98, § 2
Relation of avoirdupois pound to troy pound
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.