Kondō Isami
Perhaps one of the most famed Kotetsu blades was a fake: that of Kondō Isami, the commander of the late Edo-era patrol force called Shinsengumi. However, this sword was not a Kotetsu, but instead a sword made by the foremost smith of that era (known in Japanese swordmaking history as the shinshin-to era), Minamoto Kiyomaro, and bearing a forged Kotetsu signature made by master signature-faker Hosoda Heijirō.