The Old English Bulldog is an extinct breed of dog. The Old English Bulldog was compact, broad and muscular, as reflected in the well-known depiction Crib and Rosa. Through John Scott's engraving, this painting became the best-known and most reproduced painting of dogs from that period. The average height was approximately 15 inches (380 mm), and they weighed about 45 pounds (20 kg). A particular characteristic of the breed was the lower jaw that projected considerably in front of the upper jaw, which made possible a strong, vise-like grip. The English blood sport of bull-baiting allowed for a specialized breed in the form of the Old English Bulldog. The main locations in London for these exhibitions were the Westminster Pit, Beargarden and Old Conduit Fields. One of the breeders who spanned the transition period between the Old English Bulldog and the modern Bulldog was famous dog dealer Bill George.