What media did saul bass use to create the poster for the man with the golden arm?

Saul Bass created the iconic poster for "The Man with the Golden Arm" using a combination of graphic design and illustration techniques. He employed bold, minimalist imagery, featuring a stylized depiction of an arm with a golden hue, which symbolized the film's themes of addiction and struggle. The use of stark contrasts and limited color palette effectively captured the emotional intensity of the film. Bass's innovative approach helped redefine movie poster design in the 1950s.