Hi,my first time,so here goes.Can anybody help me with identifying a dark blue vase I have.Its 19 cm wide by 15 cm high and has a yellow rings right up its body.It has a crimped top and a ground out pontil mark.In fact I have 2 of these vases bought seperately,1 has yellow rings around the body ,the other green otherwise exactly the same.I will be very grateful for any help.Many thanks.