Unmarked, approximately 17 cm in diameter. Purchased in the US. It's in good condition, but there is one chip. See photos. I am not an expert. Please purchase only if you understand this. If you have any questions, please contact me through the question box before purchasing. I will offer a discount for those who wish to combine shipping with other items. *Please note that the perception of condition varies from person to person, and although I try my best to inspect thoroughly, there is a possibility of overlooking small stains or scratches. Please refrain from purchasing if you are sensitive to these issues or seek perfection. *Regarding shipping: Please understand that we are not responsible for any compensation for loss, breakage, or chipping during shipping. *Please be sure to confirm receipt of the item once it arrives.