Flamed stoneware ceramic vase

Wonderful vase in flamed enameled stoneware, with very beautiful, slightly foamy, white drips on a very shiny black background, which depending on the light, give it bluish reflections. It also has a pretty shape, very original. I found some with an identical glaze (but not the same model) which still had the original label indicating “real grand feu flamed stoneware”. It probably dates from the 60s or 70s. Unfortunately, I was unable to find any other information, either on the workshop in which it was made (which I still suspect to be a vallauris workshop), or on the artist who created this very particular shape or enamelling. It is stamped with model number 405 underneath. It is in perfect condition, no missing, no cracks, not even a chip. It measures 22 cm in height, the base has a diameter of 8.5 cm, the corolla has a maximum diameter of 10.5 cm.