Lot 273: ALMA WOODSEY THOMAS (1891-1978), “Untitled,” circa 1970 (watercolor on paper, 13.2 x 15.75 inches framed). | Estimate $20,000-$30,000   Women working in Abstract Expressionism and an array of artists active in Chicago are among the highlights of the Sept. 15 African American Fine Art Auction at Treadway Gallery in Cincinnati. The gallery has...