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PENNYWEIGHT. A troy weight which weighs twenty-four grains, or one-twentieth part of an ounce. Vide Weights.

References in periodicals archive ?
Troy system again: 259lb equals 4,144oz equals 82,880 pennyweights.
Lack of knowledge about the weight of their gold and unfamiliar terms like pennyweights (dwt), grams and troy ounces, confuse and intimidate many seeking a buyer for their gold.
These pennyweight windows, & I never knew the sun
Honestly, I felt dumb, but I said I wanted an idea of how much money to expect and the pennyweight prices offered by gold companies just added to my confusion.
The dealer should also tell the seller whether the payment is based on grams (gr) or pennyweight (dwt).