Old English Sheepdog

Dog

The Old English Sheepdog (OES) is a large breed of dog which was developed in England from early herding types of dog. The Old English Sheepdog has very long fur covering the face and eyes. Obsolete names of the breed include Shepherd's Dog and bob-tailed sheep-dog, and it is still nicknamed the Bob-tail (or Bobtail), since tail docking was (and in some places remains) traditional in this breed, and some are actually bred to be bob-tailed at birth.

http://en.wikipedia.org/wiki/Old_English_Sheepdog