Dopey, signed, Walt Disney, print, painting, 1938

This appears to be either an old pring or watercolor of Dopey, one of the Seven Dwarfs, with a printed signature by Walt Disney. It has several brown water stains on it. It was found between some pages of my father's 1938 college yearbook, so I am assuming it is from that time frame. Snow White and the Seven Dwarfs was released in 1938. I am interested in the appraised value.