Japanese Go Stones Hyuga Clam Shell & Nachi Black Size 33 New Unused Igo Set
Hyuga Specialty with 蛤Go Ishimoto Nachi Kuro. Hyuga Specialty. Go Go Ishii Nikko Special Book 蛤Go Ishii Nachi Kurogo Ishii No. 33. It doesn't seem to count the number of go stones. Go stones seem to be beautiful when polished.