British Pottery Three-Legged Bowl - Mark similar to Hans Coper

This is a three-legged bowl decorated with very fine blue sgraffito plants. It also has blue legs, a blue band around it and a blue interior. The rest is brown. It has an ancient look about it and a rough surface. There is a maker’s mark which I cannot find in the British marks. It is very similar to Hans Coper (wishful thinking ) just to give you an idea. It is small (13 cms across by 7 cms tall).

Possibly Mediterranean, but I dont think it's a mark I've come across before.

Many thanks. I will attempt some research of European potteries, and will let you know if I can find anything.
Thanks again,
Jane