Béla K. in Hungary shares this photo of his 7-month-old male, Karikás.
“The colour of the coat is a uniform white....
The hair should be neither excessively curly nor straight, but should...have waves and swirls. In 1924, the official term was fluctuosus, ‘wavy,’ which was replaced in 1935 by undulans, ‘undulating.’"
From: Dr. Tibor Buzády, Dogs of Hungary, trans. Bernard Adams (Budapest, Hungary: Nóra Kiadó, 2002), p. 100