Gary Hall (American, 20th Century). Acrylic and graphite on canvas diptych depicting an abstract, expressionistic rendering of two acrobats performing flip on a swing or trapeze. Signed and dated "June 83" along the verso. Labels from Concord Contemporary Art, New York, New York and Chase Manhattan Bank are adhered to the verso. Provenance: Sotheby's, New York, October 30, 2000. (Each) Height: 18 1/8 in x width: 44 5/8 in.