Couldn't resist this handle (green) on the Ever-Ready 102 at the antique store and got a great deal. Could someone confirm that this is boar hair? Also, if I want to replace the knot what size knot would I be looking for and any recommendations for hair type, size and source. Any sites that provide specs for these old Ever-Ready brushes? I am primarily a face lather-er. I will DIY (or if it looks to difficult, will just display this brush).