A Verdala bowl - a large one with the pattern I call seaweed in it.
It's an early piece, I think, Roy.
I really like this seaweedy pattern and there is not a lot of it about. I have noticed that later Verdala bowls are not this big and do not come in this pattern.
I do have one - 10.25" in diameter. I display it upside down, because the colours are better.