Coffee cup in iron earth Saint Amand

A small coffee cup in beige iron earth decorated with dark green borders. The stamp is blurred but we recognize that of saint amand. Dimensions: height 5 cm / diameter 7.4 cm. This old cup is in fairly good condition, noted a small inner crack not visible on the outside. Manufacturing defect: green paint of the decoration that marked on the earthenware (see photo). Neat and well protected shipment.