This item was at a relative's house. This size was given as a gift in 1981, 82, and 88, so it's difficult to tell which year it's from. However, the logo on the back of two of them doesn't have the Yamazaki name, so I suspect they are older. They are approximately 40 years old, and seem to have been used regularly, but I think they show little wear. Size: Diameter: Approximately 19cm Height: Approximately 2cm