After some research I ordered a T&H Silvertip Badger Style I Large, in Ivory the other night. It seems these brushes are produced by Rooney and this is the same brush as the Rooney Style 1 Size 3 (Large w/ Super Silvertip badger) in faux Ivory. Using a discount code from another forum I paid $87 for the brush. Added a set of soap to get the total up to $100 and received free shipping from T&H. Should be here by Friday so the anticipation is almost unbearable. I still am not sure what the knot size is but I believe it should be around 26 to 27mm. will have a little more information to share when it arrives.
I could paint the bathroom with my Savile Row 3126 (26x60mm):happy102 . But the seller's price was too good to ignore.