Studio pottery punch bowl

Another car boot find and a nice enough stoneware piece. It came with 8 mugs and everything is marked, but nothing in the YOF that I can see.
Any ideas as to the maker much appreciated, thank you.

Some pictures might help

Could be by Mike Labrum or Gordon Menzie’s Iona Pottery

Thank you Naomi
Not sure about Iona, I thought that mark was different. There seems to be a fair few potters that have used a similar mark.
I'll have a gander at Mike Labrum through google, I cannot see his mark in the YOF.