1968
17.7 x 10.1 x 0.7 cm (6 15/16 x 4 x 1/4 in.)
Photolithograph printed in gray ink
20th centuryAmericanOffset photolithograph printed in colors
20th centuryAmericanOffset photolithograph in black and burnt sienna
20th centuryAmericanOffset photolithograph in the format of a perforated sheet of adhesive-backed stamps
20th centuryAmericanPhotolithograph printed in colors
20th centuryAmericanDouble-sided offset photolithograph on brown paper
20th centuryAmericanPoster; offset photolithograph printed in black and brown
20th centuryAmerican