Hi all , I came across this vase and something about the base captured my interest ,it’s not one I can remember seeing before .It has a flat polished outer ring (with a lot of wear )and a sort of moulded look centre ,it’s a fairly dense Matt blue with some opal blue patches on it’s shoulder .When I first saw it I thought it was ceramic and with a very well copied sung type shape ….ring a bell with anyone ?, thanks .