but a Bokken Tsuba will be too large for a Chuto

at least for the center position in Japanese

this model is based on the Kodokan guidelines

There are several versions of this design

It remained however a rather rare emblem until the Edo period (1603-1868)

Samekawa for Iaito Tsuka noModification but a Bokken Tsuba willSamekawa Ray Skin for Iaito The Samekawa or "shark skin" is the part under the Tsukaito. Despite being called a "Samekawa", and because shark hunting isn't really a thing nowadays, stingray skin is used instead. Its main purpose is to keep the Tsukaito in place and to reinforce the Tsuka structure. The same is sanded and polished in order to produce a durable high quality type of leather. On live blades (Shinken) mount, the Same is a "Maki Same"