This is a reproduction piece. It was made to imitate old flow blue. The pattern at the top is random, not really a pattern at all, the blue is sprayed on along the sides and even though the picture doesn't show the bottom of the base , I am betting the foot ring is rough, not glazed over, all signs pointing to basically a fake. Check out the FBICC web page, there is a section on reproductions, fakes etc. ,click on the resource tab and go down New Flow Blue, put your cursor on that sub tab and a box will come up called Is It new or Old flow Blue. Click on that and the article and info will come up.