Yes Holty's stuff is mazing, as is Sauer and Steiner, Wayne Anderson, and my favorite, Jim Leamy. He died recently and I can't get his website to come up - it shows a bunch of wedding planners! But here is an article that shows some of his stuff:
https://www.popularwoodworking.com/w...my-plow-plane/
He uses spectacular rosewoods and ebony, and all sorts of great wood. I have a friend with 3 of his planes using faux ivory, but years ago he used to use real ivory:
https://www.jimbodetools.com/product...m-leamy-81021u
It is accurate in every detail down to how much out of line the stamped lettering is.
Ed