NCIt definition : A compact and rugged-looking terrier, with a wiry coat. The head is long, flat and
rectangular, with a square muzzle, bushy eyebrows, mustache, and beard. The v-shaped
ears fold forward. The cat-like feet are small and rounded. The coat may be black
and tan and grizzle. Puppies are born all black. The extremities then lighten gradually,
leaving a black jacket. The maximum height is 15 inches and the average weight range
is 20-21 pounds.;