description: Photographic documentation of Jerzy Bereś’s manifestation "Reflective Mass" (23.05.1983), made in the Krzysztofory Gallery in Krakow. The Krzysztofory basement, it’s dark. There’s a table against the wall, with a bottle and glasses on it. In the background you can see Bereś’s sculpture "Flower" (1981/82) and Maria Pinińska-Bereś’s sculptures "Blind" (1982) and "And I Painted the World Pink" (1983). In the middle of the floor lies a newspaper. Next to it is standing the naked artist with a brush and a jar of paint in his hands. Spectators sitting around on folding chairs, clockwise: Jerzy Hanusek, Bettina Bereś, Maria Pinińska-Bereś, Julian Jończyk, Marta Tarabuła, Janusz Tarabuła, Jerzy Wroński, Jerzy Kałucki, Kazimierz Mikulski, Jonasz Stern.