This "Conical Beaker" is a limited-edition, small-batch product made by Hinode Kagaku Seisakusho, a company very famous for its glass pots, to commemorate its 70th anniversary. It was produced using vintage molds. It was sold as a set of two at "Kurashi no Dougu Coquette." The shop suggested, "One for everyday use, and the other to keep carefully as a collector's item." That's exactly right. I only use one for everyday use... I thought it would be a waste, so I decided to offer it for sale, hoping someone would like to share it with me. It would be a stroke of luck if someone would like to purchase just one. Of course, I will include the certificate with the serial number. By the way... the price for the set of two was 7,700 yen. Thank you very much. Material: Heat-resistant glass Size: Approximately φ75 x 115mm Capacity: 250cc Made in Japan (Hinode Kagaku Seisakusho) Made in Japan