United States customary units mass: tower, apothecaries', troy, avoirdupois, and metric. Of these, the avoirdupois weight is the most common system used in the U.S., although Troy weight is still used to weigh precious metals. Apothecaries weight—once used by pharmacies—has been largely replaced by metric measurements. Tower weight fell out of use in England (due to legal prohibition in 1527) centuries ago, and was never used in the U.S. The imperial system, which is still used for some measures in the United Kingdom and other Commonwealth countries, is based on avoirdupois, with variations from U.S. customary units larger than a pound. The pound avoirdupois,
Precious McKenzie Precious McKenzie Precious McKenzie MBE (born 6 June 1936) is a South African-born former weightlifter who won Commonwealth titles representing both England and New Zealand and has won several World powerlifting and Masters World powerlifting titles. He is of diminutive stature at 1.45m (4' 9"). Born in Durban, South Africa, Precious McKenzie suffered from ill-health during his childhood. An ambition to be a circus performer ended because of South Africa's race laws and this led him to weight training and weightlifting. Although he was ranked the best weightlifter in his weight category in South Africa, he was barred from representing