small brown clay pot with lid and marks

this small pot is light and dark brown in color. It has a  lid on top and 2 different marks on one side. 1 mark looks like maybe 2 B's together with a long loop under them. the other maybe capital A and P joined together. I got it from a elderly friend when she was moving from her home to an apartment in a box of other things. Please do you have any idea what it is? i tried to find the marks online and in books but had no luck.

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