Pyrite stoneware box or pot, vintage

Circular box in pyrite stoneware. Unusual appearance: the pyrite chips are few and very large, the glaze inside is a deep and shiny black with some enamelling irregularities. Under the object there are five lighter traces that certainly correspond to the points of support in the oven at the time of cooking. Handcrafted object of the 70s in very good condition (no splinters or lack). Diameter 11.5 cm. Height 8.5 cm.