Redwood Burl. The wood isn't as red as it came out in these photos, a bit browner, but it is more varied than it appears. Looks great, Marko did a great job.
Oh, it's on a Shigefusa 270mm Kasumi Gyuto.
"God sends meat and the devil sends cooks." - Thomas Deloney
Wow. Nice knife, JohnnyC.
I want to go to there.