The baptismal font created before 1791 was made of white and yellow marble discovered in Grodzisk near Skała in 1689 and called "the marble of blessed Salomea".
Józef Skrabski, "Baptismal font", [in:] "The Sacred Lesser Poland Heritage", 2023, source: https://sdm.upjp2.edu.pl/en/works/baptismal-font-31