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
Animal pound Animal pound An animal pound is a place where stray livestock were impounded. Animals were kept in a dedicated enclosure, until claimed by their owners, or sold to cover the costs of impounding. The terms "pinfold" and "pound" are Saxon in origin. "Pundfald" and "pund" both mean an enclosure. There appears to be no difference between a pinfold and a village pound. The term "pinfold" seems to be more popular in the north and east of England, whilst in the south and west the term "pound" is more popular. The person in charge of the 'pinfold' was the 'pinder', giving