I put a coat of polyacrylic on it and then took some pictures with three different knots.
Update: April 1, 2017
I received an Omega 49 brush today. My son, David, was here, so, he helped me complete this brush. I harvested the knot from the handle, and David used the Dremel to size the knot's base to fit the handle. Here is a picture of it dry fitted. I will be setting it later today with silicone. Then it will be ready to go to its new home.