User blog comment:Lasaro Ginjou/Kitetsu Katana/@comment-972068-20121224020646/@comment-5536072-20121224021211

The drawings are not always accurate. In the manga chapter 233 page 15 in the same image (but in the manga) it seems longer with more grooves. Just like Zoro's Sandai Kitetsu.

Go look at it and you will see that they have more thinks in common.