Duella (unit)

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Duella , also duels , was a French mass unit and, due to its size, a pharmacist's weight .

1 duella = ⅓ ounce (Roman) = 8 scrupels = 192 grains = 10 1/5 grams

literature

Johann Friedrich Krüger : Complete manual of the coins, measures and weights of all countries in the world. Verlag Gottfried Basse, Quedlinburg / Leipzig 1830, p. 72.