Li Tieguai ? Pottery Figure - Help ACS Resale Shop

I was at the American Cancer Society resale shop and they asked me about this large (12 inch tall) figure that is part bisque - the rock and part glazed - the figure except for the top of the head. I told them I would ask you about it, so they could set the right price. If you all tell me what you think, I'll search down the value. I think it may be the Daoist Figure Li Tiequai, but that's just a guess based on a quick internet search. It has a mark, which I couldn't get a good photo of in the store. It looks to me like the white clay was pressed into the mold rather than poured, because the interior is rough. It is quite beautiful and I hope it is something nice, as I am a big fan of supporting cancer research. Thank you.

 

Shiwan pottery

 

Thank you very much!