Vase or pocket tray signed Jean Cacheleux 1970s

Pickering vase made in the 1970s by ceramist jean cacheleux. Glazed stoneware. Signature (hallmark)jc recognizable at the base of the object. Very good condition, no lack. However, there are slight grey markings that do not seem to me to belong to the original enamel and are probably the result of friction against another surface. These marks are visible in the last photo.