The plaque, commemorating the 15.000 victims of different places of extermination, with an inscription engraved and glided in black stone, was made in 1990.
Agata Felczyńska , "A plaque commemorating the victims of extermination", [in:] "The Sacred Lesser Poland Heritage", 2023, source: https://sdm.upjp2.edu.pl/en/works/a-plaque-commemorating-the-victims-of-extermination