description: Photographic documentation of Jerzy Bereś’s manifestation "Reflective Mass" (23.05.1983), taken at 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). in the middle of the floor there’s a newspaper, next to it is the inscription "szt". The naked artist is kneeling next to it and dipping a brush in a jar of paint. You can see that it’s the popular weekly "Polityka". Spectators sitting around on folding chairs, clockwise: Jerzy Hanusek, Bettina Bereś, Maria Pinińska-Bereś, Julian Jończyk, Marta Tarabuła, Janusz Tarabuła, Jerzy Wroński, Jerzy Kałucki, Anna Strycharska, Kazimierz Mikulski, Jonasz Stern, nn, Stanisław Balewicz, Janina Kraupe Świderska.