Hello, I have studied a pair of Hebi menuki for a few months now. However, I am at an roadblock. I have tried to do research but nothing substantial has come up yet. They have a hakogaki from Dr. Sato Kanzan, but it only mentions when he wrote it, material and school. My thoughts are they are edo in age, a respected member of the NMB(whom I will not name unless given permission) told me it reminds him of the work form Iwamoto Konkwan. I'd love to hear any thoughts.