Seefried, Irmgard (1919–1988) Signed PhotographSigned photograph of the important German soprano, a frequent collaborator with Elisabeth Schwarzkopf. Stamp to verso identifies her as "Leading Soprano Vienna Opera." 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, and later spent 25 years as an arts and