Milton Glaser's poster "Don't Eat Grapes"

I was lucky enough to acquire another very rare poster from Milton Glaser, Don't Eat Grapes, from 1969. The poster is rare because it is printed on cheap paper and its extremely fragile, that is why there isn't many left. The poster was created for United Farm Workers, AFL-CIO, Delano, California, for International Grape Boycott Day.

At the bottom of the poster there is a quote by Cesar Chavez, who co-founded the National Farm Workers Association, later renamed the United Farm Workers (UFW) union.