#Shu Okuhara Glassworks This item is from about 25 years ago. It's old, but it's clean because it hasn't been used. *Ryukyu glass is made using the middle-blowing method, and recycled glass, is used to make each piece by hand. Please understand the following before purchasing: bubbles, glass streaks that occur during forming, marks from the shaping tools, asymmetrical shapes, and the cut surfaces of the glass on the bottom.