The Yorkshire Terrier is one of the smallest dog breed of terrier type, and of any dog breed. It has a grey, black and tan coat, and the breed's nickname is Yorkie. Usually a teacup is any dog weighing less than 4 lb (1.8 kg) when fully grown, when the actual breed standard is given at 7 lb (3.2 kg) maximum. Breeding for 'teacup' size is a controversial practice that is not encouraged by responsible breeders.They are bred to appeal with their puppy-like features, rather than bred to avoid health issues. Sylvia, a matchbox-sized Yorkshire Terrier owned by Arthur Marples of Blackburn, England, was the smallest dog in recorded history. The dog died in 1945 when she was two years old, at which point she stood 2 1⁄2 in (6.4 cm) tall at the shoulder, measured 3 1⁄2 in (8.9 cm) from nose tip to tail, and weighed 4 oz (110 g).