Signed on label affixed to verso, upper left, in blue ink: Bernard G. Silberstein
Inscribed, typewritten by artist on label affixed to verso, upper left: #______: "PORTRAIT OF DIEGO | RIVERA WITH HIS DOG" Ca. 1940 | by Bernard G. Silberstein | FPSA FRPS Written in blank space after #, in blue ink: 2902 (refers to artist's negative number)