Earthenware, with red marbled decoration under a yellow glaze.
SONG DYNASTY?
Thoughts?
More pics.
Normally I would think of Ming or Qing. I do not know if this type of item existed in the Song dynasty at all. It is made by mixing clays of different colors together.
I have only seen newer and Qing dynasty ones. Whether or not this one is antique depends much on the age signs, weight and consistency of clay. But this is impossible to tell without hands-on inspection.
I would stay away from such difficult to identify items, there are too many recent ones.
Thank you Peter as Always.