Japanese Studio pottery mark

Hi, Can anyone help me ID this mark please. Thanks.

Not sure an image of the whole thing will identify it but all anyone can say from this is that it could be Japanese.

This mark is not on the items I have - it's just the same mark (I can't get a good enough shot of the mark on my items) I attach a picture of the items I have.

Seeing the decoration does more or less confirm that they are Japanese yunomis but they look to me as if they are "production made" rather than individual studio pottery.

What I mean by that is that they are likely to have been made in a small factory type setting, with the vessels being thrown by a person or persons and then hand decorated by other individuals. So they will have been hand thrown and hand decorated but not by the same person. The brush decoration is Japanese but it's not in a traditional style and so I suspect they were made for the modern decorative market.

I can't help with the mark but knowing that isn't going to have any bearing on their value.