Crackle glaze enamelled stoneware lamp base signed CB LM

Lamp base in enamelled stoneware with cracked glaze signed intaglio cb lm (see photos and zoom in). French work from the 80s. Very good condition. Note a discreet original defect around the edge (see photos and zoom in). The total height of the lamp base (including brass socket) is 19.5 cm. The maximum diameter of the lamp base is 18 cm. The lampshade visible in the photos is not supplied. Works with a bayonet bulb not supplied.