This photo, taken in the 1930s in Hungary, shows a boy or young man with his dog. The dog appears to me to be a young Komondor, but it's the same general size and function of the Kuvasz. Compare them to the size of the bull, a full-grown Hungarian Gray. Imagine our Kuvasz protecting an entire herd of cattle this size. These photos below also show the size of the cattle our Kuvs were expected to protect. This is the environment that our Kuvasz were developed in.
These photos were shared by the Az Igazmondo Juhasz ("The Truthful Shepherd") Facebook page. Check out the albums on this FB page for more historic photos.