American Staffordshire Terrier

Photograph by Svenska Mässan

The American Staffordshire Terrier, also known as the Amstaff (in the United States), is a medium-sized, short-coated American dog breed. In the early part of the twentieth century the breed gained social stature and was accepted by the American Kennel Club in 1936 and should not be confused with the Staffordshire Bull Terrier of the United Kingdom. Wikipedia