Set of 10 coffee cups and saucers Chantal and Thierry Robert

Superb set of 10 enameled stoneware cups and saucers by chantal and thierry robert (atelier atch). Manufactured in the 70s and 80s. Each piece is unique. Gray-beige enamelling with a light frieze decoration on the cups. Diameter of the cups: 9cm. Diameter of the saucers: 15cm. In very good condition, note a chip on the edge of one of the cups. Signed under the base of each cup. Two saucers (one with chip) in addition to the set. The couple of ceramists worked from the beginning of the 1970s until the end of the 1990s in the department of maine-et-loire.