Stoneware pitcher from Puisaye la Borne by Jean-Michel Doix in ceramic 1950

Large deceptive pitcher or secret pitcher. Artist jean michel doix piece signed under the piece. sandstone from puisaye la borne. Ceramic 1950 design. Very good condition. Looking at the pitcher seen the holes you can't pour the liquid. There's something there. At the bottom of the cove, inside, there is a hole that allows the liquid to pass through a duct in the cove. But that's not enough, you have to plug a hole hidden in the upper part of the cove.