Schwarzkopf, Elisabeth. (1915–2006) Signed Photograph in "Der Rosenkavalier"Signed photograph of the legendary soprano in one of her most famous roles, the Marschallin in Strauss' Der Rosenkavalier, inscribed "To Paul! Elisabeth Schwarzkopf." Light crease to lower right corner, else fine. 8 x 10 inches (20. 32 x 25. 4 cm.). From the collection of Paul McMahon, a critic, photographer and artist who worked for more than 13 years touring with Marlene Dietrich as the icons stage manager, announcer, dresser, secretary and escort,