Originating from dogs bred and used by the Reverend John Russell in the early 19th century, from whom the breed takes its name, the Jack Russell has similar origins to the modern Fox terrier. Jack Russells have appeared many times in film, television, and print – with several historical dogs of note. As it is primarily a working terrier, its most important physical characteristic is its chest size, which must not be so large that it prevents the dog from entering and working in burrows. In the UK, one of the more recognisable canine stars was restaurateur and chef Rick Stein's irrepressible terrier Chalky, who frequently upstaged his owner on his various cookery series. He was unique in having his own line of merchandise, including plushes, tea towels, art prints, art paw prints and two real ales – Chalky's Bite and Chalky's Bark, which won gold in the Quality Drink Awards 2009.