Pound (mass) for the weight of certain precious metals, especially in the trade; these are normally quoted just in ounces (e.g. "500 ounces") and, when the type of ounce is not explicitly stated, the troy system is assumed. Historically, the pound sterling was a Tower pound of silver. In 1528, the standard was changed to the Troy pound. The avoirdupois pound, also known as the wool pound, first came into general use c. 1300. It was initially equal to 6992 troy grains. The pound avoirdupois was divided into 16 ounces. During the reign of Queen Elizabeth, the avoirdupois pound was redefined as
Pound cake the name pound cake is often still used. Some of the variations are described below. A traditional American pound cake would contain one pound each of flour, butter, eggs, and sugar. This recipe is quite popular in the cuisine of the Southern United States. In France, the pound cake is well known. The name of the pound cake ""quatre-quarts"", means four quarters. There are equal weights in each of the four quarters. In tradition, the popular cake of the French region of Brittany, as its name implies, uses the same quantity of the four ingredients, but with no added fruit