This is a blown glass. ・Size 　Diameter: Approximately 6cm 　Height: Approximately 10.5cm ・Purchased about 30 years ago from a craft shop in Shinjuku. There are no markings, but I believe it is a work by Shingo Tasaka of Ikuchijima Glass, although I am not certain. ・Please refrain from purchasing if you are concerned about slight air bubbles, which are a characteristic of blown glass works. ・I haven't used it much after purchasing it, so I think the condition is good. I am also selling a red glass that I purchased at the same time. Please refrain from purchasing if you are concerned about minor details. #IkuchijimaGlass #ShingoTasaka #Bingo-ya #ChikiriyaKogeiTen #WahoFunaki #YutakaMorinaga #YoshikazuMiyake #HidekiYokoyama