Chemm health food drink! That doesn't sound very appetizing. No wonder they had to throw in a free ring.
The North American general release of Snow White and the Seven Dwarfs occurred in February 1938. So this offer was certainly capitalizing on the massive success that the film was enjoying during this period. Yet, is it an officially licensed Disney brothers promotion? The illustrations of Snow and the Prince somewhat resemble the movie characters, but the ad is oddly missing any mention of Walt Disney.
Image scans courtesy of the Rick Payne Collection. See what Rick has for sale at dadric's attic.