vintage Dona Rosa Signed barro neuro San Bartolo Coyotepec Oaxaca Mexico 1900 - 1980 Dona Rosa created her own method of firing pottery to create the shiny clack finish, prior to this, black clay would be a dusty Grey when fired this is a beautiful piece of Mexican craftsmanship from a renowned Mexican Artisan in excellent condition artist sign on base of piece 7 × 6.5 inches