depicting Lev Mironov, Pianist with Mikhail Karevich, Violinist and Vladimir Adamatskiy, Cellist. Mounted on paper; bearing gifting inscription and three signatures in the lower left, dated May, 2, 1930, signed by Moisei Nappelbaum in the lower right, a stamp of the Turist photo studio in Moscow on verso; photograph size: 22.6 x 16.5 cm (8 7/8 x 6 1/2 in.); overall: 36.5 x 29 cm (14 3/8 x 11 3/8 in.)