Unit Definition (drachme) The drachme is a traditional unit of weight in France and Germany, generally between 3.7 and 3.9 grams.
Unit Definition (pennyweight [troy]) The pennyweight is a unit of weight in the traditional troy system, equal to 24 grains or 1/20 troy ounce. One pennyweight is approximately 1.5552 gram.
Weight/Mass 
