During the time of Henry III, the pound sterling equalled the tower (weight) pound. In the 28th year of Edward I (around 1300), the tale (money) pound, or pound sterling, first began to differ from (weigh less than) the tower pound, from which it originated, for by indenture of that year the pound weight was to contain 20s. 3d. in tale pound. In the 27th year of Edward III (around 1354), the pound sterling was now only 80% of the pound weight, or 9 oz 12 dwt (or 9.6 oz) tower. By an Act of the 13th year of Henry IV's reign (around 1412), the pound weight of standard silver was to contain thirty shillings in "tale", or one and a half pounds sterling; thus the pound sterling reduced to two-thirds of a pound weight, or 8 oz tower. The pound sterling was adjusted in weight several more times subsequently.