Here are some real concrete display cases/showcases. The casts were made flat on real boards more or less offset with deliberately dug ribs. After the installation of the slabs (2 to 3 cm thick), a bleached patina softens the "hard" side of the concrete. The rest of the part has been patinated with oil on glue to give it a slight wear and tear. Note the small concrete square glued to the top of the doors.
Paris 8th
Paris 8th
