A set of blue ceramic tokkuri (sake bottles) and sakazuki (sake cups), featuring a leaf pattern decoration. - Color: Blue - Material: Ceramic - Set Contents: 4 tokkuri, 10 sakazuki - Country of Manufacture: Japan Thank you for viewing. One of the tokkuri has a black streak on the back, but it doesn't appear to be a crack. Please check the photos. It has been stored in a storehouse for a long time. I don't know when it was made. Please understand and accept that it is a long-term storage item and an old item.