Mid-century set of 3 black bucchero ceramic vases, Sebastiani Italy 1960s

Midcentury set of 3 black bucchero ceramic vases. Sebastiani gubbio italy 1960s. H: 35, 5 cm - 8 cm diam. H: 32 cm - 12 cm diam. H: 22 cm - 17 cm diam. Signed on the base. The black technique on the type of etruscan bucchero, is a magical technique that consists of firing objects immersed in charcoal, in a reducing atmosphere, I.e. Without oxygen, a process that allows one to obtain pieces with a black colouring, which powerfully show the essence of the material. Conditions: excellent, no defects.