Pound (mass) No standards of the Tower pound are known to have survived. The Tower pound was equivalent to about 350 grams. The merchants' pound ("mercantile pound", "libra mercantoria", or "commercial pound") was considered to be composed of 25 rather than 20 Tower shillings of 12 pence. It was equal to 9,600 wheat grains (15 tower ounces or 6,750 grains) and was used in England until the 14th century for goods other than money and medicine ("electuaries"). The London pound is that of the Hansa, as used in their various trading places. The London pound is based on 16 ounces, each ounce
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