This index monitors the value of works by 1930s-40s American abstraction pioneers including Stuart Davis, Burgoyne Diller, George McNeil, and Balcomb Greene who promoted geometric abstraction during Social Realism dominance. It tracks the appreciation for early American modernist efforts, geometric purity, and theoretical abstraction development. Use this a key indicator for American avant-garde appreciation, historical abstraction value, and collector interest in pre-Abstract Expressionist American modernism representing foundational American abstract art development.
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