These five shakuhachi on the left are wide bore jinashi towari 1.8s in the key of C#. An ideogram and kanji hanko by the thumbhole, and a second ideogram stamped toward the lower node of the shakuhachi are the identifiers of this Myoan style instrument. Also in the photo are boxes of recorder-like adapters for people who have never played shakuhachi, to appreciate the sound back home in the states before they start their practice of developing a proper embouchure. One's embouchure adds much tonal character.
Nara Komuso Mutake demonstrates an exceptional tonal character on an extreme large bore 1.8 jinashi shakuhachi.