This is a gorgeous and exceptionally large charger or wall plate.
It was made for Crown Ducal by Charlotte Rhead and is fully signed on the back, as photographed.
It is certainly a very pretty example with its profusion of orange and blue flowers on a cream-beige background.
I have never seen such a large example before - and it has a diameter of 17 inches.
Of course, in perfect condition with no damages or restorations.