When looking up the pot on a reverse google image search it pulls up this museum page. The pots look near identical though the markings are different
When looking up the pot on a reverse google image search it pulls up this museum page. The pots look near identical though the markings are different
To add on to what others have said, it’s a kind of clay used for artisanal pots and cups, especially teapots. It “breaks in” based on what tea you brew in it, so big tea nerds might have a puerh one separate from an oolong one. It is usually unglazed so that the porous quality that allows it to “break in” isn’t removed.