This is a mountain tea bowl (yamachawan) fired in the Seto area during the Kamakura period. There are no scratches on the inside, so it's likely a top-quality piece. The condition is quite good. Thank you. As this is essentially an antique, if you intend to use it as a flower vase, please use a water-holding insert (otoshi). Also, I would appreciate it if those familiar with antiques, vintage items, and used goods would consider purchasing. There may be minor chips or subtle repairs that I haven't noticed, so please feel free to ask if you have any questions! Thank you. *For those wishing to purchase multiple items, I'm happy to offer a discount as a gesture of goodwill.