Sunflowers, beginning of 1910, 1910
Oil on canvas
97 × 72 cm
Signed right lower corner in Cyrillic “Нат. Альтман» (Nat. Altman) Expert reports: - Chemical-technological research and analysis by Prof. Valery P. Golikov, PhD, the head of the department of the Center of Historical and Traditional Technologies of the Heritage Institute, Moscow, Russian Federa- tion