CDR = Comités de Defensa de la Revolución (Committees for the Defense of the Revolution)
XX Aniversario Orientación Revolucionaria (20th Anniversary Revolutionary Orientation)
20th anniversary of the Cuban Revolution's founding event - the Moncada Barracks assault on July 26, 1953. Since 1973 was the 20th anniversary of this pivotal moment, many Cuban posters from that year were produced under this designation.
