Pottery mark with waves/boat/P mark??

Hi, does anyone recognise this mark? No idea if British or not....

Picture of the whole pot would be good, helps with the ID, cheers.

Thanks for your reply. It's a general green glazed bowl, I think stoneware. I've no idea if old or modern or where it's from. It was from a job lot of pottery at auction. I've searched the net trying to finds out from the stamp but got no where. Even some guesses would help and be much appreciated!
Cat

Looks like there's an MW? mark on it too. Is it written in marker pen? If it didn't have the boat stamp I'd have said Asian, maybe Korean.

Hi, yes there's an M and a W written there, as well as possibly something else that has been worn off as the base has worn a little. I've no idea if it was written at the same time as the piece... The glaze has lots of crazing but I know that doesn't necessarily mean it's of any age! I'm been typing all kinds of variations to try and find the stamp online but getting no where.... I'll try looking up some Korean base marks, thanks!