These are moulds for making scarabs.

They are from Naukratis. Faience was made in small workshops, but the makers used clay moulds in large-scale mass-production, particularly of beads for jewellery. These moulds would have made amulets in the shape of scarabs, the symbol of new life and rebirth. Hundreds of thousands of scarab amulets were made in stone, glass and faience, and they were worn by the living and buried with the dead for protection. These are moulds for making scarabs. They are made from clay. We do not know how old these objects are.