Enameled sandstone lamp base signed 70s

Lamp base in the shape of a colocynth in enamelled stoneware. French work from the fontgombault abbey (embossed signature under the base. See photos and zoom in). 1970s. Colors mixing wine tones, lichen green and metallic reflections of pyrite. Good overall condition. Note small injuries to the glaze on a very limited surface (see photos and zoom in). Total height 20 cm. Base diameter 16 cm. Works with a bayonet base bulb not supplied. The lampshade visible in the photos is not supplied.