Saint Amand yellow ceramic cups and saucer

Set of two pretty large ceramic cups and saucers with a beautiful yellow enamel on the outside, white on the inside, highlighted with a black border. They are stamped Saint Amand underneath. They must date from the 1950s because the group's last factory closed its doors in 1962. They are in good general condition, no cracks or chips, but have the patina of time, marks which testify to their 70 years: small chips and small gaps on the enamelling, numerous but not excessively visible. The plates include a part (3 cm ring around the edge) whose enamelling is a little less smooth to the touch than the rest, perhaps original. The cups have a diameter of 10 cm and a height of 7 cm. The saucers have a diameter of 18.5cm.