I believe this to be a prototype for a Herta/BC Ceramics vase in the Flamenco decor. The bottom is signed somewhat indistinctly “W.G handmade”. The wheel marks are clearly visible. My guess is that this is a Walter Gertz piece, which may or may not have made it into mass production – I have not seen a vase of this shape in this decor. I’m interested if other users of this site have seen a Flamenco vase of this shape. -Roger Gannon