Although Alexander Calder is not purely an Abstract Expressionist, his work shares many of its qualities. His signature style is depicted here and as stated by the Metropolitan Museum of Art in New York, his work explores weightlessness and mass, line and color, motion and stability. The mobiles he created were suspended abstractions. Calder’s work was shown prolifically abroad and within the United States and the height of his fame was during the 1950s. He received criticism from modern art opponents due to his works being shown with more provocative artists such as Pollock and Shahn, but the State Department did not perceive him as a threat.