Rubinstein, Arthur. (1887–1982) Signed PhotographPortrait photograph of the great Polish born pianist, who has boldly signed in black ink. The caption in the lower margin promotes the World Artists production MusicNow and Forever. Very fine. 8 x 10 inches (20. 3 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