Studio tenmoku jug, impressed kanji mark - Motoko Wakana

Studio tenmoku jug, impressed mark
Can’t work out the mark. Well made older piece I think.
?

Looks like a kanji stamp. Might be by one of the Japanese potters that trained at Leach Pottery

Japanese potters who worked there recently or a good while back?

Maybe Shigeyoshi Ichino?

Doesn’t look like his mark but I just found a list of other Japanese potters linked to Leach Pottery so I’ll take a look.
I like the glaze and decoration more than the shape.

The glazes look like those that Motoko Wakana used when she was working "down your way".

She was my first thought but the mark didn’t seem to match.

I think you might be right Studio. I’ll get a better photo of the mark later. I think it’s been marked sideways.

Better photo. I think it looks right for Motoko Wakana.
Thanks Studio and Naomi.