Bottle with handle, pitcher, in stoneware, signed

Beautiful bottle in very slightly pyrite stoneware with a pretty enamel in two dominant colors and textures, the very smooth beige and the glazed caramel but a rougher one. The shape is also charming. A beautiful artisanal work of turning, modeling (for the pretty handle) and enameling. This bottle has a stamp underneath, resembling an ear of wheat, but which I have not managed to identify (if you have any information, I would be delighted if you could share it with me). I would date it from the 60s or 70s when ceramics in these shades and with a natural appearance were popular, without certainty however. It is in good condition, no cracks or chips, but shows some signs of its age: fine cracks on the light enamel (but less visible in reality than in the photos) and two original defects, two round "spots" on the dark part where the varnish seems absent or lighter, it is not very visible. I wonder if these are the marks of the ceramist's fingers when he laid the cover. It measures 25 cm in height, between 8 and 9 cm in diameter. The cork stopper will be included.