Set of 6 St Amand soup plates, vintage

Here is a set of 6 soup plates attributed to the st amand earthenware factory. They are decorated with fruits, oranges, around the edge, in a garland. The plates are in good general condition but being almost 100 years old they nevertheless bear traces of their age: one of them is slightly stained (see photos), others have chips in the bottom. No gaps or cracks. Diameter 23 cm height 3.5 cm.