Large unglazed bowl ID please. JM mark - Jon Middlemiss

Hello, I am new. I would dearly like help identifying one of my 21st birthday gifts from 40 years ago please. It was bought in southern England and I have always assumed it was new then. The bowl is 35cm diameter and 7cm high. The decoration is done as though a layer has been removed to show a different colour of a layer beneath. The colours in the triangles are slightly metallic. The bowl feels relatively light and I have always felt it is thin and delicate but it has survived for so long so perhaps isn't!

It’s a lovely bowl. Unfortunately I can’t make out the mark from the photo; nothing is coming up for M. Would help if you can get a closer photo of the mark

Thank you for looking NaomiM. I hope these pics are better. I can't be sure it's an M even looking at it directly because of that leading 'tail' or maybe I'm looking at it the wrong way up

It’s JM. My first thought was Jon Middlemiss; it’s the sort of bowl he’d do. But it’s not one of the marks I have for him. It might be an unrecorded mark, or someone else entirely

Oh my goodness, that sounds familiar, I'm sure you are right. Thank you so much

In this link just below the photo on the front page, you can a similat bowl. https://www.middlemissart.com/

On the other hand, Jon Middlemiss pots are nearly all very light and delicate looking for their size. They feel super in the hand. This clay looks not quite right. As you say, the mark is not one of his recorded ones.

I think it must be by him. Sadly he died a few years ago

Thank you both for your interest. With other family corroborating evidence I am as sure as I can be now that this is a Middlemiss bowl. It will have been an early piece and I have found another mark similar in my searches. The bowl is very light as I said and the mark is tiny so the close ups look a bit rough. I am very grateful for your expertise, thank you.