The BF2 V is the first folding boat knife developed by Extrema Ratio, and its launch took place on the Italian training ship, Amerigo Vespucci.

The No Time Off, designed by Flavio Ikoma, is the first folding knife manufactured by CRKT to be equipped with the new locking mechanism ILS^TM.

Andrea Saratti, author of the book, is an avid collector of Japanese swords, as well as President of the INTK Association (Itaria Nihon Token Kyokai - Italian Association for Japanese Sword) that was established with the aim of promoting and preserving the Token culture.