• A little over half an ounce, by weight.
  • 6-7-2017 There are two systems, avoirdupois and troy. Since some people can't pronounce "avoirdupois" they call it "postal". In that system an ounce is 28.35 grams and a pound is 16 ounces. In the troy system, used for precious metals, an ounce is 31.1 grams and a pound is 12 ounces.

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