SAYAGAKI
Sayagaki is done primarily for identification. If you have many swords in shirasaya, it will be easier to find a particular sword if the Shirasaya has a Sayagaki on it.
Sayagaki is a very nice thing to have done to your Shirasaya after the sword has been polished and has gone thru Shinsa. Here are some examples of Sayagaki. The first is done by Kentaro Yoshikawa and the second one is done by Michihiro Tanobe. The last one is a Sayagaki done for identification purpose by my calligrapher.
Yoshikawa Sensei Sayagaki
Tanobe Sensei Sayagaki
Sayagaki done for me by my calligrapher
