Hi
My what *good* eyes you must have....I really had to look, but I think I see where you mean now, but I still only see (poss) a *A* there (can't see a *P* yet).....I have deleted all the other pictures I had taken so I will dig out this dish, and take some more pictures to see if we can make anything else out.....
You mean this that looks like a *A*....where I cropped....
If I was to guess (??) I was thinking maybe Evangeline Pottery (Canadian ??) since I have some other pieces by them, and did put numbers on their items, but then on those pieces, they also had their name on it (incised)....
The glaze on here is so thick, you can not make out much...but the only other reason I (might) think it is (poss) Evangeline Pottery is by this site:
http://www.canadiandesignresource.ca/officialgallery/?cat=2If you *scroll* to the very bottom of this page, you will see Candle holders, and they show the bottom legs there (and color of clay). Both my ashtray clay color, and legs seem to be (??) the same...
What do you think? In the meantime, I will take some more photos to see if I can pick up anything more (in the light) of this base....