HINT: To convert from Troy Ounces & Pennyweights type something like "12t oz 7dwt"
Accuracy:
A unit of apothecary weight equal to 480 grains or one twelfth of a troy pound
A measure of Troy weight equalling 24 grains or the twentieth part of a Troy ounce (there are 12 ounces in a pound Troy). Pennyweight is usually abbreviated dwt.
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