Thank you for viewing. This is a teacup that my grandmother purchased at a department store some time ago. The bottom is marked with "Nishiyama" and "Takayama." I am not knowledgeable on the subject, so I cannot guarantee it, but it is likely Arita-yaki. Please note that one of the maple leaf designs has a small chip on the rim. Please check the photos. I will clean it again before shipping and pack it with the utmost care. Thank you for your consideration.