Much larger than our usual size of grinding basins. This would make a great water feature as a fountain piece or spilling water to an more rustic designed pool.
https://new.millsarchive.org/wp-content/uploads/2020/05/Ancient_Milling_in_China.pdf
https://new.millsarchive.org/2016/09/06/from-quern-to-computer-the-history-of-flour-milling/4/
