Etruria & Barlaston Wedgewood Shell Serving Plate 11" Nautilus Satin

Vintage plate in the Nautilus pattern. It is in a satin finish and the colour is white. Makers mark is on the back and is also stamped but I can't make it out. In good condition. There is a chip on the underside near the top but cannot be seen from the top. A minor manufacturers black mark on the front as shown in the photos.