Black Earthenware Plate 21 cm Vintage

Vintage plate from the brand Salins les Bains, "inalterable", made in France. Not signed (or at least it's not visible), but I have the same ones in grey and they are signed. Earthenware. In 2 shades of black, glossy and satin. Diameter 21.5 cm - starter, salad, dessert. New, never used. 6 available. Some material defects (purchased as is) on the back - see photos. One plate has a slightly lighter edge (see photo) and one plate has a micro defect on the front, see photo.