Yes, it is from a piece of scrap INFI that was left over from a mod I did a while back. Actually, it wouldn't exactly call it a mod. It is more like making two separate knives out of one. I cut a Busse SAR5 in half. Made it into bar stock and then ground out a Miniature FSH out of the blade portion of the SAR5. The left over handle portion was used to make the Kiridashi.
BTW, that particular kiridashi has 3 cutting edges.