Enamelled stoneware vase signed

Nice little ceramic vase, sandstone it seems to me, with a nice enamelling in multiple shades, ranging from brown to gray green and a harmonious shape. It's a nice handmade work with a signature engraved underneath, but I can't decipher it. This vase will be perfect to receive some dried flowers or in collection with other vases. It is in perfect condition, neither cracked nor bright. It measures 12 cm in height and about 10 cm in maximum diameter. It weighs about 350 g.