Amazing tea pot - cross mark partly obscured by glaze

Think I can see a cross in a square. Looks like there are additional marks but they are obscured by the glaze. Any help appreciated thank you

What is the capacity and size of it of of it? Is there any sign of a curve at the bottom and top of the mark? Just speculating the vague possibilty it might be St Ives standard ware. It looks very 1970's, when there were a very large numbers of new potters seeking an alternative lifestyle.

It’s a large capacity just over 2 litres. No curve really. Looks like there are 2 marks present. Many thanks for your input

It could just be by Bryan Newman at Aller: I found this of a quite similar shape:
https://www.worthpoint.com/worthopedia/aller-pottery-brian-newman-studio-1038054382

I'm seeing a square stamp with a cross inside it.

NaomiM: Would Phyl Thomas be a possibility?

No, she had a dot in her mark. Even with the glaze I think you'd see it

NaomiM wrote:No, she had a dot in her mark. Even with the glaze I think you'd see it

Yes usually the dot is at top righthand side, I did wonder about that. Just a thought.

Many thanks is everyone