This is a Shishida-ryu Shinobue, Take-sui. This is a Shishida-ryu Shinobue Take-sui, made by the second-generation flute maker, Chuichi Ito of Ito Takekan Instruments, who inherited the techniques of the late Edo period flute maker, Mr. Shishida. It was made in the late Showa era, over 40 years ago. The bamboo is well-dried and has a natural color, and it is a good instrument with excellent sound quality and tone. High temperatures, low temperatures, humidity, and heated rooms should be avoided. This flute is tuned to 6-hon choshi (key) with 6 holes. We look forward to your purchase.