A couple of months ago I picked up a vintage ivory handle - Rudy Vey worked his magic and installed a nice D-01 2 band fan in it and I got it back earlier today. The knot's about 25/50. The handle is well preserved, nice patina and Schreger lines and a few fine but stable cracks. This complements my only other ivory brush very well - also vintage, a big moppy Simpson PJ with a 29/60 knot in a softer grade of silvertip that was done by Shavemac some years ago. Kind of the Yin and Yan of brushes. From a quick test lather the D-01 has a very nice feel - plenty of resilience but also good flow through. I'll try it out for face lathering in the morning.