View of contralto Marian Anderson rehearsing for Verdi's "Un ballo in maschera" with director Herbert Graf. Printed on front: "Sedge LeBlang." Stamped on back: "Sedge LeBlang, photographer for the Metropolitan Opera, 147 West 39th St., N.Y. 18, N.Y. PE. 6-8640." Handwritten on back: "Marian Anderson rehearses staging for 'Ballo' with Herbert Graf, Met. Opera stage director."