All-Union Central Research Laboratory for Conservation and Restoration of Museum Artistic Values in Moscow

USSR. Moscow. December 1976. Researcher Natalya Zakharova during a microchemical analysis of paint layers to determine the time of the painting's creation and the artist's school at the All-Union Central Research Laboratory for the Conservation and Restoration of Museum Artistic Treasures. The exact date of the photo shoot has not been established. Boris Korzin/TASS