Regulations Governing the Issuance of Gold and Silver Coins and Commemorative Notes and Coins Article 4
Weights of gold and silver coins shall be expressed in ounce, with the weight in grams given in accompanying notes.
中文原文 金銀幣及紀念性券幣發行辦法第4條
金銀幣之重量以英兩標示，並於說明書加註公克數。