Please Help Identify Large Vase With Strange Symbol Mark Under Base

This large porcelain vase is approx 47cm high and 23cm diameter,, it looks like it's molded as there is seams down each side,, it is hand painted and has a strange blue mark under the base,, does anyone reconize it's origin or know what the mark is????

My first thought is Asian but I've not seen a mark like that before. Possibly late 19thC Western (French?) chinoiserie. Otherwise, possibly late 19th-early 20thC Japanese.