That big of a knot is truly rare. It is hard to find any that tall. I have a 30 mm brush with 69 mm loft and really enjoy it. I can't make another one like it. Yours dwarfs mine. I hope you have a really big mug for it.
A bit late for the threat, but just to have it shown if you like to see...
PLISSON Crystal PLEXI Size 32 limited edition produced 2002-2004
Knot 39x92 mm HMW 125mm spread
Base 60x71x95 mm
Total hight 187mm
(...never seen one again...)
here in comparison to a one of a kind 10/8 full hollow Barber's Notch SOLINGEN MASTERPIECE straight razor