Pennyweight (dwt or pwt)
Pennyweight (dwt or pwt) :
A unit of weight in the traditional troy system (see also pound [2]), equal to 24 grains or 1/20 troy ounce. One pennyweight is approximately 1.5552 gram. The d in the traditional symbol dwt is from the Latin word denarius for the small coin which was the Roman equivalent of a penny. (The letter d was also the symbol for the penny in the traditional English monetary system.) See troy weights for additional information
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