In the Netherlands and Surinam , 20ᵗʰ century¹, a unit of mass = 500 grams.
1. United Nations, 1966. Technical Conversion Factors…, 1972, page 310.
In the 18ᵗʰ century, the Dutch troy pond was 492.16772 grams, while the Amsterdam pond was 494.09042 grams.
In the Netherlands, the apothecaries' pond = 375 grams.
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Last revised: 9 October 2010.