This is an otoso (ceremonial sake) set that has been around for over 50 years. The base measures approximately 33.5 x 21.5 x 6.5 cm. I don't think it's a particularly high-quality set, but it came in a box. It doesn't appear to have been used much, and while there is some aging, it's in relatively good condition for its age. The box is quite deteriorated, but I think it's valuable, so I'll send it along with the set. I hope someone will use it.