 Levy's is best known for the ad campaign "You Don't have to Be Jewish to Love Levy's Real Jewish Rye," which ran in New York in the 1960s.Large white posters hung in the city's subway system to broadcast the company's new slogan, each bearing a large, photographic portrait of a distinctly non-Jewish person eating a slice of rye bread.Early renditions featured a choirboy, Catholic cop, and American Indian.