Set of 3 bluish and ochre plates in stoneware Arts Ceram Grand Feu

Here is a set of 3 stoneware plates of a subtle tone that goes from gray blue to ochre yellow / mustard 23 cm in diameter for a height between 2.5 and 3 cm. These are ceram grand feu arts: note that two of them are signed and the 3rd not. They are in excellent condition, but there are just 2 pocs on the unsigned plate (the small chips are visible and surrounded in the photos). Batch weight approx. 2.1 kg.