Studio Pottery, N mark in a circle

Hi 
New to this and wondered if anyone could help, I have a studio pottery vase marked with a capital N in a circle. Struggling to identify the maker! Could anyone help?
Thank you in advance!

Your pot looks 1970s era. Possibly by Alan Newark, Humble Spud Pottery, but I'm not seeing the same A in your stamp. Not much about him online. He was based in Little Downham, near Ely, Cambridgeshire, 1970s-80s, potting with Kevin Barrett.

https://www.20thcenturyforum.com/t34683-alan-newark#227698

I was thinking that too, it’s identical but like you said I can’t make out the A over the top. It does look similar to his work though but like you said not much about him online! Thanks so much for your reply, really appreciate it!