Signed Navajo Sand Painting Buffalo Horn by Melvin Masquat. This is an oval painting of Buffalo Horn by Navajo artist Melvin Masquat who signed the back of this piece. The painting is in very good condition and measures 7 x 10 inches. Note: The buffalo is a very scared animal to the Native American and has powerful meaning. To the Native American the buffalo gives one endurance, provides great emotional courage, and the buffalo itself is the provider to all. The buffalo is also a symbol of abundance to the American Indian as there was at one time more of them in America than there were people.