Large Raku art vase, unique vintage piece, signed

Large vintage raku/art ceramic vase, modern style. Handcrafted, signed (signature to be identified), tall rectangular shape, cut diagonally on the edge on one side, another long side rolled up, interior of the vase matte and black texture, exterior more or less clear, enamel/glazing from white to black via green, khaki and gray, more or less dark fine cracking, irregular spreading, drips, creases, colored iridescence more or less visible on the surface of the glaze. Unglazed foot. 29cm max height, 9cm side. Very beautiful object, unique piece. Very good general condition, a chip on the top of the rim roll-up, and on the inside of the roll-up, white materials under the black/glaze, these are really discreet old accidents, no other chips, no cracks, a few small scratches quite discreet also, on the bottom. About 2kg.