Uncja

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The Polish Uncja as a measure of weight was the ounce with different mass.

In the size range of Medizinalgewichtes was

1 Uncja / ounce = 29 8/9 grams

At the commercial weight were

1 Uncja = 2 Łut / Lot = 8 Drachma = 24 Scrupul = 675 Gran = 3168 Granik = 25.344 Milligran
16 Uncja = 1 Funt
400 Uncja = 1 Kamień / stone
1600 Uncja = 1 centnar

literature

Johann Friedrich Krüger : Complete manual of the coins, dimensions and weight of all countries in the world. Published by Gottfried Basse, Quedlinburg / Leipzig 1830, p. 358