Oriental-ish Ideas Anyone?

I hate marks that can be read up, down, left or right...

is it an M/W with a line through or a B or some other contraption of letters?

Has anyone seen this mark before?

Could it be P M ???

Appreciate any ideas...

David Charles White and Pauline Watson have a similar crossed-through W mark but it also looks like it has an inscribed SL mark which doesn't match either one.

Thanks N. it looked to me a bit like Pauline Watson's mark but looking at the type of pottery it's more than likely not by her.

Thanks for your help, much appreciated... I'll have a look for David Charles Whites stuff now