description: Photo session in Jerzy Bereś’s studio at Siemaszki Street in Kraków, during which Jerzy Bereś activates the sculpture "Altar I (Alarm Clock)" (1972), with Maciej Jerzmanowski and Jan Burnat also taking part in the session. In the photograph: Jerzy Bereś is standing behind the sculpture and pressing the lever. He is dressed in black, girded with a wide belt. It is a participatory sculpture. It was purchased by the Milanese gallerist Arturo Schwarz in 1973. Schwarz planned to establish the Museum of the Avant-Garde of Eastern Europe, but he did not carry out the plan. After many years, he sold his collection at auction. Since then, the fate of the sculpture has not been known. On the left side, you can see "Rotunda with a Bell" (1962) by Maria Pinińska-Bereś.